20921050

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{163}}^1$

素因数の和:343

約数の個数: 48

約数和(自身を含む): 41729472

約数和(自身を除く): 20808422

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 151, 163, 170, 302, 326, 425, 755, 815, 850, 1510, 1630, 2567, 2771, 3775, 4075, 5134, 5542, 7550, 8150, 12835, 13855, 24613, 25670, 27710, 49226, 64175, 69275, 123065, 128350, 138550, 246130, 418421, 615325, 836842, 1230650, 2092105, 4184210, 10460525, 20921050]

約数ペア:

[(1, 20921050), (2, 10460525), (5, 4184210), (10, 2092105), (17, 1230650), (25, 836842), (34, 615325), (50, 418421), (85, 246130), (151, 138550), (163, 128350), (170, 123065), (302, 69275), (326, 64175), (425, 49226), (755, 27710), (815, 25670), (850, 24613), (1510, 13855), (1630, 12835), (2567, 8150), (2771, 7550), (3775, 5542), (4075, 5134)]