78255940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1699}}^1$

素因数の和:1769

約数の個数: 72

約数和(自身を含む): 195350400

約数和(自身を除く): 117094460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 658, 940, 980, 1316, 1645, 1699, 2303, 3290, 3398, 4606, 6580, 6796, 8495, 9212, 11515, 11893, 16990, 23030, 23786, 33980, 46060, 47572, 59465, 79853, 83251, 118930, 159706, 166502, 237860, 319412, 333004, 399265, 416255, 558971, 798530, 832510, 1117942, 1597060, 1665020, 2235884, 2794855, 3912797, 5589710, 7825594, 11179420, 15651188, 19563985, 39127970, 78255940]

約数ペア:

[(1, 78255940), (2, 39127970), (4, 19563985), (5, 15651188), (7, 11179420), (10, 7825594), (14, 5589710), (20, 3912797), (28, 2794855), (35, 2235884), (47, 1665020), (49, 1597060), (70, 1117942), (94, 832510), (98, 798530), (140, 558971), (188, 416255), (196, 399265), (235, 333004), (245, 319412), (329, 237860), (470, 166502), (490, 159706), (658, 118930), (940, 83251), (980, 79853), (1316, 59465), (1645, 47572), (1699, 46060), (2303, 33980), (3290, 23786), (3398, 23030), (4606, 16990), (6580, 11893), (6796, 11515), (8495, 9212)]