20695440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1627}}^1$

素因数の和:1696

約数の個数: 80

約数和(自身を含む): 65406528

約数和(自身を除く): 44711088

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, 1627, 2120, 2544, 3180, 3254, 4240, 4881, 6360, 6508, 8135, 9762, 12720, 13016, 16270, 19524, 24405, 26032, 32540, 39048, 48810, 65080, 78096, 86231, 97620, 130160, 172462, 195240, 258693, 344924, 390480, 431155, 517386, 689848, 862310, 1034772, 1293465, 1379696, 1724620, 2069544, 2586930, 3449240, 4139088, 5173860, 6898480, 10347720, 20695440]

約数ペア:

[(1, 20695440), (2, 10347720), (3, 6898480), (4, 5173860), (5, 4139088), (6, 3449240), (8, 2586930), (10, 2069544), (12, 1724620), (15, 1379696), (16, 1293465), (20, 1034772), (24, 862310), (30, 689848), (40, 517386), (48, 431155), (53, 390480), (60, 344924), (80, 258693), (106, 195240), (120, 172462), (159, 130160), (212, 97620), (240, 86231), (265, 78096), (318, 65080), (424, 48810), (530, 39048), (636, 32540), (795, 26032), (848, 24405), (1060, 19524), (1272, 16270), (1590, 13016), (1627, 12720), (2120, 9762), (2544, 8135), (3180, 6508), (3254, 6360), (4240, 4881)]