320417240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:218

約数の個数: 192

約数和(自身を含む): 885427200

約数和(自身を除く): 565009960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 88, 104, 110, 124, 130, 139, 143, 155, 169, 220, 248, 260, 278, 286, 310, 338, 341, 403, 440, 520, 556, 572, 620, 676, 682, 695, 715, 806, 845, 1112, 1144, 1240, 1352, 1364, 1390, 1430, 1529, 1612, 1690, 1705, 1807, 1859, 2015, 2728, 2780, 2860, 3058, 3224, 3380, 3410, 3614, 3718, 4030, 4309, 4433, 5239, 5560, 5720, 6116, 6760, 6820, 7228, 7436, 7645, 8060, 8618, 8866, 9035, 9295, 10478, 12232, 13640, 14456, 14872, 15290, 16120, 17236, 17732, 18070, 18590, 19877, 20956, 21545, 22165, 23491, 26195, 30580, 34472, 35464, 36140, 37180, 39754, 41912, 43090, 44330, 46982, 47399, 52390, 56017, 57629, 61160, 72280, 74360, 79508, 86180, 88660, 93964, 94798, 99385, 104780, 112034, 115258, 117455, 159016, 172360, 177320, 187928, 189596, 198770, 209560, 224068, 230516, 234910, 236995, 258401, 280085, 288145, 379192, 397540, 448136, 461032, 469820, 473990, 516802, 560170, 576290, 616187, 728221, 795080, 939640, 947980, 1033604, 1120340, 1152580, 1232374, 1292005, 1456442, 1895960, 2067208, 2240680, 2305160, 2464748, 2584010, 2912884, 3080935, 3641105, 4929496, 5168020, 5825768, 6161870, 7282210, 8010431, 10336040, 12323740, 14564420, 16020862, 24647480, 29128840, 32041724, 40052155, 64083448, 80104310, 160208620, 320417240]

約数ペア:

[(1, 320417240), (2, 160208620), (4, 80104310), (5, 64083448), (8, 40052155), (10, 32041724), (11, 29128840), (13, 24647480), (20, 16020862), (22, 14564420), (26, 12323740), (31, 10336040), (40, 8010431), (44, 7282210), (52, 6161870), (55, 5825768), (62, 5168020), (65, 4929496), (88, 3641105), (104, 3080935), (110, 2912884), (124, 2584010), (130, 2464748), (139, 2305160), (143, 2240680), (155, 2067208), (169, 1895960), (220, 1456442), (248, 1292005), (260, 1232374), (278, 1152580), (286, 1120340), (310, 1033604), (338, 947980), (341, 939640), (403, 795080), (440, 728221), (520, 616187), (556, 576290), (572, 560170), (620, 516802), (676, 473990), (682, 469820), (695, 461032), (715, 448136), (806, 397540), (845, 379192), (1112, 288145), (1144, 280085), (1240, 258401), (1352, 236995), (1364, 234910), (1390, 230516), (1430, 224068), (1529, 209560), (1612, 198770), (1690, 189596), (1705, 187928), (1807, 177320), (1859, 172360), (2015, 159016), (2728, 117455), (2780, 115258), (2860, 112034), (3058, 104780), (3224, 99385), (3380, 94798), (3410, 93964), (3614, 88660), (3718, 86180), (4030, 79508), (4309, 74360), (4433, 72280), (5239, 61160), (5560, 57629), (5720, 56017), (6116, 52390), (6760, 47399), (6820, 46982), (7228, 44330), (7436, 43090), (7645, 41912), (8060, 39754), (8618, 37180), (8866, 36140), (9035, 35464), (9295, 34472), (10478, 30580), (12232, 26195), (13640, 23491), (14456, 22165), (14872, 21545), (15290, 20956), (16120, 19877), (17236, 18590), (17732, 18070)]