20520380880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{2579}}^1$

素因数の和:2898

約数の個数: 240

約数和(自身を含む): 70818770880

約数和(自身を除く): 50298390000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 129, 144, 172, 180, 215, 240, 257, 258, 344, 360, 387, 430, 514, 516, 645, 688, 720, 771, 774, 860, 1028, 1032, 1285, 1290, 1542, 1548, 1720, 1935, 2056, 2064, 2313, 2570, 2579, 2580, 3084, 3096, 3440, 3855, 3870, 4112, 4626, 5140, 5158, 5160, 6168, 6192, 7710, 7737, 7740, 9252, 10280, 10316, 10320, 11051, 11565, 12336, 12895, 15420, 15474, 15480, 18504, 20560, 20632, 22102, 23130, 23211, 25790, 30840, 30948, 30960, 33153, 37008, 38685, 41264, 44204, 46260, 46422, 51580, 55255, 61680, 61896, 66306, 77370, 88408, 92520, 92844, 99459, 103160, 110510, 110897, 116055, 123792, 132612, 154740, 165765, 176816, 185040, 185688, 198918, 206320, 221020, 221794, 232110, 265224, 309480, 331530, 332691, 371376, 397836, 442040, 443588, 464220, 497295, 530448, 554485, 618960, 662803, 663060, 665382, 795672, 884080, 887176, 928440, 994590, 998073, 1108970, 1325606, 1326120, 1330764, 1591344, 1663455, 1774352, 1856880, 1988409, 1989180, 1996146, 2217940, 2651212, 2652240, 2661528, 3314015, 3326910, 3976818, 3978360, 3992292, 4435880, 4990365, 5302424, 5323056, 5965227, 6628030, 6653820, 7953636, 7956720, 7984584, 8871760, 9942045, 9980730, 10604848, 11930454, 13256060, 13307640, 15907272, 15969168, 19884090, 19961460, 23860908, 26512120, 26615280, 28500529, 29826135, 31814544, 39768180, 39922920, 47721816, 53024240, 57001058, 59652270, 79536360, 79845840, 85501587, 95443632, 114002116, 119304540, 142502645, 159072720, 171003174, 228004232, 238609080, 256504761, 285005290, 342006348, 427507935, 456008464, 477218160, 513009522, 570010580, 684012696, 855015870, 1026019044, 1140021160, 1282523805, 1368025392, 1710031740, 2052038088, 2280042320, 2565047610, 3420063480, 4104076176, 5130095220, 6840126960, 10260190440, 20520380880]

約数ペア:

[(1, 20520380880), (2, 10260190440), (3, 6840126960), (4, 5130095220), (5, 4104076176), (6, 3420063480), (8, 2565047610), (9, 2280042320), (10, 2052038088), (12, 1710031740), (15, 1368025392), (16, 1282523805), (18, 1140021160), (20, 1026019044), (24, 855015870), (30, 684012696), (36, 570010580), (40, 513009522), (43, 477218160), (45, 456008464), (48, 427507935), (60, 342006348), (72, 285005290), (80, 256504761), (86, 238609080), (90, 228004232), (120, 171003174), (129, 159072720), (144, 142502645), (172, 119304540), (180, 114002116), (215, 95443632), (240, 85501587), (257, 79845840), (258, 79536360), (344, 59652270), (360, 57001058), (387, 53024240), (430, 47721816), (514, 39922920), (516, 39768180), (645, 31814544), (688, 29826135), (720, 28500529), (771, 26615280), (774, 26512120), (860, 23860908), (1028, 19961460), (1032, 19884090), (1285, 15969168), (1290, 15907272), (1542, 13307640), (1548, 13256060), (1720, 11930454), (1935, 10604848), (2056, 9980730), (2064, 9942045), (2313, 8871760), (2570, 7984584), (2579, 7956720), (2580, 7953636), (3084, 6653820), (3096, 6628030), (3440, 5965227), (3855, 5323056), (3870, 5302424), (4112, 4990365), (4626, 4435880), (5140, 3992292), (5158, 3978360), (5160, 3976818), (6168, 3326910), (6192, 3314015), (7710, 2661528), (7737, 2652240), (7740, 2651212), (9252, 2217940), (10280, 1996146), (10316, 1989180), (10320, 1988409), (11051, 1856880), (11565, 1774352), (12336, 1663455), (12895, 1591344), (15420, 1330764), (15474, 1326120), (15480, 1325606), (18504, 1108970), (20560, 998073), (20632, 994590), (22102, 928440), (23130, 887176), (23211, 884080), (25790, 795672), (30840, 665382), (30948, 663060), (30960, 662803), (33153, 618960), (37008, 554485), (38685, 530448), (41264, 497295), (44204, 464220), (46260, 443588), (46422, 442040), (51580, 397836), (55255, 371376), (61680, 332691), (61896, 331530), (66306, 309480), (77370, 265224), (88408, 232110), (92520, 221794), (92844, 221020), (99459, 206320), (103160, 198918), (110510, 185688), (110897, 185040), (116055, 176816), (123792, 165765), (132612, 154740)]