20198240

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3079}}^1$

素因数の和:3135

約数の個数: 48

約数和(自身を含む): 48898080

約数和(自身を除く): 28699840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3079, 3280, 6158, 6560, 12316, 15395, 24632, 30790, 49264, 61580, 98528, 123160, 126239, 246320, 252478, 492640, 504956, 631195, 1009912, 1262390, 2019824, 2524780, 4039648, 5049560, 10099120, 20198240]

約数ペア:

[(1, 20198240), (2, 10099120), (4, 5049560), (5, 4039648), (8, 2524780), (10, 2019824), (16, 1262390), (20, 1009912), (32, 631195), (40, 504956), (41, 492640), (80, 252478), (82, 246320), (160, 126239), (164, 123160), (205, 98528), (328, 61580), (410, 49264), (656, 30790), (820, 24632), (1312, 15395), (1640, 12316), (3079, 6560), (3280, 6158)]