87221820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{207671}}^1$

素因数の和:207690

約数の個数: 48

約数和(自身を含む): 279111168

約数和(自身を除く): 191889348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 207671, 415342, 623013, 830684, 1038355, 1246026, 1453697, 2076710, 2492052, 2907394, 3115065, 4153420, 4361091, 5814788, 6230130, 7268485, 8722182, 12460260, 14536970, 17444364, 21805455, 29073940, 43610910, 87221820]

約数ペア:

[(1, 87221820), (2, 43610910), (3, 29073940), (4, 21805455), (5, 17444364), (6, 14536970), (7, 12460260), (10, 8722182), (12, 7268485), (14, 6230130), (15, 5814788), (20, 4361091), (21, 4153420), (28, 3115065), (30, 2907394), (35, 2492052), (42, 2076710), (60, 1453697), (70, 1246026), (84, 1038355), (105, 830684), (140, 623013), (210, 415342), (420, 207671)]