213320920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2423}}^1$

素因数の和:2536

約数の個数: 64

約数和(自身を含む): 502640640

約数和(自身を除く): 289319720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 1240, 1420, 2201, 2423, 2840, 4402, 4846, 8804, 9692, 11005, 12115, 17608, 19384, 22010, 24230, 44020, 48460, 75113, 88040, 96920, 150226, 172033, 300452, 344066, 375565, 600904, 688132, 751130, 860165, 1376264, 1502260, 1720330, 3004520, 3440660, 5333023, 6881320, 10666046, 21332092, 26665115, 42664184, 53330230, 106660460, 213320920]

約数ペア:

[(1, 213320920), (2, 106660460), (4, 53330230), (5, 42664184), (8, 26665115), (10, 21332092), (20, 10666046), (31, 6881320), (40, 5333023), (62, 3440660), (71, 3004520), (124, 1720330), (142, 1502260), (155, 1376264), (248, 860165), (284, 751130), (310, 688132), (355, 600904), (568, 375565), (620, 344066), (710, 300452), (1240, 172033), (1420, 150226), (2201, 96920), (2423, 88040), (2840, 75113), (4402, 48460), (4846, 44020), (8804, 24230), (9692, 22010), (11005, 19384), (12115, 17608)]