20304960

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1627}}^1$

素因数の和:1660

約数の個数: 112

約数和(自身を含む): 69470016

約数和(自身を除く): 49165056

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 1627, 2080, 2496, 3120, 3254, 4160, 4881, 6240, 6508, 8135, 9762, 12480, 13016, 16270, 19524, 21151, 24405, 26032, 32540, 39048, 42302, 48810, 52064, 63453, 65080, 78096, 84604, 97620, 104128, 105755, 126906, 130160, 156192, 169208, 195240, 211510, 253812, 260320, 312384, 317265, 338416, 390480, 423020, 507624, 520640, 634530, 676832, 780960, 846040, 1015248, 1269060, 1353664, 1561920, 1692080, 2030496, 2538120, 3384160, 4060992, 5076240, 6768320, 10152480, 20304960]

約数ペア:

[(1, 20304960), (2, 10152480), (3, 6768320), (4, 5076240), (5, 4060992), (6, 3384160), (8, 2538120), (10, 2030496), (12, 1692080), (13, 1561920), (15, 1353664), (16, 1269060), (20, 1015248), (24, 846040), (26, 780960), (30, 676832), (32, 634530), (39, 520640), (40, 507624), (48, 423020), (52, 390480), (60, 338416), (64, 317265), (65, 312384), (78, 260320), (80, 253812), (96, 211510), (104, 195240), (120, 169208), (130, 156192), (156, 130160), (160, 126906), (192, 105755), (195, 104128), (208, 97620), (240, 84604), (260, 78096), (312, 65080), (320, 63453), (390, 52064), (416, 48810), (480, 42302), (520, 39048), (624, 32540), (780, 26032), (832, 24405), (960, 21151), (1040, 19524), (1248, 16270), (1560, 13016), (1627, 12480), (2080, 9762), (2496, 8135), (3120, 6508), (3254, 6240), (4160, 4881)]