8218720

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1657}}^1$

素因数の和:1703

約数の個数: 48

約数和(自身を含む): 20055168

約数和(自身を除く): 11836448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 1657, 2480, 3314, 4960, 6628, 8285, 13256, 16570, 26512, 33140, 51367, 53024, 66280, 102734, 132560, 205468, 256835, 265120, 410936, 513670, 821872, 1027340, 1643744, 2054680, 4109360, 8218720]

約数ペア:

[(1, 8218720), (2, 4109360), (4, 2054680), (5, 1643744), (8, 1027340), (10, 821872), (16, 513670), (20, 410936), (31, 265120), (32, 256835), (40, 205468), (62, 132560), (80, 102734), (124, 66280), (155, 53024), (160, 51367), (248, 33140), (310, 26512), (496, 16570), (620, 13256), (992, 8285), (1240, 6628), (1657, 4960), (2480, 3314)]