27810680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:133

約数の個数: 128

約数和(自身を含む): 72230400

約数和(自身を除く): 44419720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 37, 38, 40, 43, 46, 74, 76, 86, 92, 95, 115, 148, 152, 172, 184, 185, 190, 215, 230, 296, 344, 370, 380, 430, 437, 460, 703, 740, 760, 817, 851, 860, 874, 920, 989, 1406, 1480, 1591, 1634, 1702, 1720, 1748, 1978, 2185, 2812, 3182, 3268, 3404, 3496, 3515, 3956, 4085, 4255, 4370, 4945, 5624, 6364, 6536, 6808, 7030, 7912, 7955, 8170, 8510, 8740, 9890, 12728, 14060, 15910, 16169, 16340, 17020, 17480, 18791, 19780, 28120, 30229, 31820, 32338, 32680, 34040, 36593, 37582, 39560, 60458, 63640, 64676, 73186, 75164, 80845, 93955, 120916, 129352, 146372, 150328, 151145, 161690, 182965, 187910, 241832, 292744, 302290, 323380, 365930, 375820, 604580, 646760, 695267, 731860, 751640, 1209160, 1390534, 1463720, 2781068, 3476335, 5562136, 6952670, 13905340, 27810680]

約数ペア:

[(1, 27810680), (2, 13905340), (4, 6952670), (5, 5562136), (8, 3476335), (10, 2781068), (19, 1463720), (20, 1390534), (23, 1209160), (37, 751640), (38, 731860), (40, 695267), (43, 646760), (46, 604580), (74, 375820), (76, 365930), (86, 323380), (92, 302290), (95, 292744), (115, 241832), (148, 187910), (152, 182965), (172, 161690), (184, 151145), (185, 150328), (190, 146372), (215, 129352), (230, 120916), (296, 93955), (344, 80845), (370, 75164), (380, 73186), (430, 64676), (437, 63640), (460, 60458), (703, 39560), (740, 37582), (760, 36593), (817, 34040), (851, 32680), (860, 32338), (874, 31820), (920, 30229), (989, 28120), (1406, 19780), (1480, 18791), (1591, 17480), (1634, 17020), (1702, 16340), (1720, 16169), (1748, 15910), (1978, 14060), (2185, 12728), (2812, 9890), (3182, 8740), (3268, 8510), (3404, 8170), (3496, 7955), (3515, 7912), (3956, 7030), (4085, 6808), (4255, 6536), (4370, 6364), (4945, 5624)]