21585840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1697}}^1$

素因数の和:1766

約数の個数: 80

約数和(自身を含む): 68218848

約数和(自身を除く): 46633008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 53, 60, 80, 106, 120, 159, 212, 240, 265, 318, 424, 530, 636, 795, 848, 1060, 1272, 1590, 1697, 2120, 2544, 3180, 3394, 4240, 5091, 6360, 6788, 8485, 10182, 12720, 13576, 16970, 20364, 25455, 27152, 33940, 40728, 50910, 67880, 81456, 89941, 101820, 135760, 179882, 203640, 269823, 359764, 407280, 449705, 539646, 719528, 899410, 1079292, 1349115, 1439056, 1798820, 2158584, 2698230, 3597640, 4317168, 5396460, 7195280, 10792920, 21585840]

約数ペア:

[(1, 21585840), (2, 10792920), (3, 7195280), (4, 5396460), (5, 4317168), (6, 3597640), (8, 2698230), (10, 2158584), (12, 1798820), (15, 1439056), (16, 1349115), (20, 1079292), (24, 899410), (30, 719528), (40, 539646), (48, 449705), (53, 407280), (60, 359764), (80, 269823), (106, 203640), (120, 179882), (159, 135760), (212, 101820), (240, 89941), (265, 81456), (318, 67880), (424, 50910), (530, 40728), (636, 33940), (795, 27152), (848, 25455), (1060, 20364), (1272, 16970), (1590, 13576), (1697, 12720), (2120, 10182), (2544, 8485), (3180, 6788), (3394, 6360), (4240, 5091)]