216783980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{607}}^1\times {\mathrm{2551}}^1$

素因数の和:3174

約数の個数: 48

約数和(自身を含む): 521342976

約数和(自身を除く): 304558996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 607, 1214, 2428, 2551, 3035, 4249, 5102, 6070, 8498, 10204, 12140, 12755, 16996, 17857, 21245, 25510, 35714, 42490, 51020, 71428, 84980, 89285, 178570, 357140, 1548457, 3096914, 6193828, 7742285, 10839199, 15484570, 21678398, 30969140, 43356796, 54195995, 108391990, 216783980]

約数ペア:

[(1, 216783980), (2, 108391990), (4, 54195995), (5, 43356796), (7, 30969140), (10, 21678398), (14, 15484570), (20, 10839199), (28, 7742285), (35, 6193828), (70, 3096914), (140, 1548457), (607, 357140), (1214, 178570), (2428, 89285), (2551, 84980), (3035, 71428), (4249, 51020), (5102, 42490), (6070, 35714), (8498, 25510), (10204, 21245), (12140, 17857), (12755, 16996)]