408029900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{569}}^1$

素因数の和:755

約数の個数: 72

約数和(自身を含む): 908379360

約数和(自身を除く): 500349460

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 101, 142, 202, 284, 355, 404, 505, 569, 710, 1010, 1138, 1420, 1775, 2020, 2276, 2525, 2845, 3550, 5050, 5690, 7100, 7171, 10100, 11380, 14225, 14342, 28450, 28684, 35855, 40399, 56900, 57469, 71710, 80798, 114938, 143420, 161596, 179275, 201995, 229876, 287345, 358550, 403990, 574690, 717100, 807980, 1009975, 1149380, 1436725, 2019950, 2873450, 4039900, 4080299, 5746900, 8160598, 16321196, 20401495, 40802990, 81605980, 102007475, 204014950, 408029900]

約数ペア:

[(1, 408029900), (2, 204014950), (4, 102007475), (5, 81605980), (10, 40802990), (20, 20401495), (25, 16321196), (50, 8160598), (71, 5746900), (100, 4080299), (101, 4039900), (142, 2873450), (202, 2019950), (284, 1436725), (355, 1149380), (404, 1009975), (505, 807980), (569, 717100), (710, 574690), (1010, 403990), (1138, 358550), (1420, 287345), (1775, 229876), (2020, 201995), (2276, 179275), (2525, 161596), (2845, 143420), (3550, 114938), (5050, 80798), (5690, 71710), (7100, 57469), (7171, 56900), (10100, 40399), (11380, 35855), (14225, 28684), (14342, 28450)]