20294520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1291}}^1$

素因数の和:1436

約数の個数: 64

約数和(自身を含む): 61395840

約数和(自身を除く): 41101320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1291, 1310, 1572, 1965, 2582, 2620, 3144, 3873, 3930, 5164, 5240, 6455, 7746, 7860, 10328, 12910, 15492, 15720, 19365, 25820, 30984, 38730, 51640, 77460, 154920, 169121, 338242, 507363, 676484, 845605, 1014726, 1352968, 1691210, 2029452, 2536815, 3382420, 4058904, 5073630, 6764840, 10147260, 20294520]

約数ペア:

[(1, 20294520), (2, 10147260), (3, 6764840), (4, 5073630), (5, 4058904), (6, 3382420), (8, 2536815), (10, 2029452), (12, 1691210), (15, 1352968), (20, 1014726), (24, 845605), (30, 676484), (40, 507363), (60, 338242), (120, 169121), (131, 154920), (262, 77460), (393, 51640), (524, 38730), (655, 30984), (786, 25820), (1048, 19365), (1291, 15720), (1310, 15492), (1572, 12910), (1965, 10328), (2582, 7860), (2620, 7746), (3144, 6455), (3873, 5240), (3930, 5164)]