331358420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{1019}}^1$

素因数の和:1328

約数の個数: 48

約数和(自身を含む): 709430400

約数和(自身を除く): 378071980

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 229, 284, 355, 458, 710, 916, 1019, 1145, 1420, 2038, 2290, 4076, 4580, 5095, 10190, 16259, 20380, 32518, 65036, 72349, 81295, 144698, 162590, 233351, 289396, 325180, 361745, 466702, 723490, 933404, 1166755, 1446980, 2333510, 4667020, 16567921, 33135842, 66271684, 82839605, 165679210, 331358420]

約数ペア:

[(1, 331358420), (2, 165679210), (4, 82839605), (5, 66271684), (10, 33135842), (20, 16567921), (71, 4667020), (142, 2333510), (229, 1446980), (284, 1166755), (355, 933404), (458, 723490), (710, 466702), (916, 361745), (1019, 325180), (1145, 289396), (1420, 233351), (2038, 162590), (2290, 144698), (4076, 81295), (4580, 72349), (5095, 65036), (10190, 32518), (16259, 20380)]