405983240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{21101}}^1$

素因数の和:21162

約数の個数: 64

約数和(自身を含む): 1010363760

約数和(自身を除く): 604380520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 1480, 1924, 2405, 3848, 4810, 9620, 19240, 21101, 42202, 84404, 105505, 168808, 211010, 274313, 422020, 548626, 780737, 844040, 1097252, 1371565, 1561474, 2194504, 2743130, 3122948, 3903685, 5486260, 6245896, 7807370, 10149581, 10972520, 15614740, 20299162, 31229480, 40598324, 50747905, 81196648, 101495810, 202991620, 405983240]

約数ペア:

[(1, 405983240), (2, 202991620), (4, 101495810), (5, 81196648), (8, 50747905), (10, 40598324), (13, 31229480), (20, 20299162), (26, 15614740), (37, 10972520), (40, 10149581), (52, 7807370), (65, 6245896), (74, 5486260), (104, 3903685), (130, 3122948), (148, 2743130), (185, 2194504), (260, 1561474), (296, 1371565), (370, 1097252), (481, 844040), (520, 780737), (740, 548626), (962, 422020), (1480, 274313), (1924, 211010), (2405, 168808), (3848, 105505), (4810, 84404), (9620, 42202), (19240, 21101)]