20580960

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{809}}^1$

素因数の和:880

約数の個数: 96

約数和(自身を含む): 66134880

約数和(自身を除く): 45553920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 80, 96, 106, 120, 159, 160, 212, 240, 265, 318, 424, 480, 530, 636, 795, 809, 848, 1060, 1272, 1590, 1618, 1696, 2120, 2427, 2544, 3180, 3236, 4045, 4240, 4854, 5088, 6360, 6472, 8090, 8480, 9708, 12135, 12720, 12944, 16180, 19416, 24270, 25440, 25888, 32360, 38832, 42877, 48540, 64720, 77664, 85754, 97080, 128631, 129440, 171508, 194160, 214385, 257262, 343016, 388320, 428770, 514524, 643155, 686032, 857540, 1029048, 1286310, 1372064, 1715080, 2058096, 2572620, 3430160, 4116192, 5145240, 6860320, 10290480, 20580960]

約数ペア:

[(1, 20580960), (2, 10290480), (3, 6860320), (4, 5145240), (5, 4116192), (6, 3430160), (8, 2572620), (10, 2058096), (12, 1715080), (15, 1372064), (16, 1286310), (20, 1029048), (24, 857540), (30, 686032), (32, 643155), (40, 514524), (48, 428770), (53, 388320), (60, 343016), (80, 257262), (96, 214385), (106, 194160), (120, 171508), (159, 129440), (160, 128631), (212, 97080), (240, 85754), (265, 77664), (318, 64720), (424, 48540), (480, 42877), (530, 38832), (636, 32360), (795, 25888), (809, 25440), (848, 24270), (1060, 19416), (1272, 16180), (1590, 12944), (1618, 12720), (1696, 12135), (2120, 9708), (2427, 8480), (2544, 8090), (3180, 6472), (3236, 6360), (4045, 5088), (4240, 4854)]