20910480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{577}}^1$

素因数の和:744

約数の個数: 80

約数和(自身を含む): 65364864

約数和(自身を除く): 44454384

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 151, 240, 302, 453, 577, 604, 755, 906, 1154, 1208, 1510, 1731, 1812, 2265, 2308, 2416, 2885, 3020, 3462, 3624, 4530, 4616, 5770, 6040, 6924, 7248, 8655, 9060, 9232, 11540, 12080, 13848, 17310, 18120, 23080, 27696, 34620, 36240, 46160, 69240, 87127, 138480, 174254, 261381, 348508, 435635, 522762, 697016, 871270, 1045524, 1306905, 1394032, 1742540, 2091048, 2613810, 3485080, 4182096, 5227620, 6970160, 10455240, 20910480]

約数ペア:

[(1, 20910480), (2, 10455240), (3, 6970160), (4, 5227620), (5, 4182096), (6, 3485080), (8, 2613810), (10, 2091048), (12, 1742540), (15, 1394032), (16, 1306905), (20, 1045524), (24, 871270), (30, 697016), (40, 522762), (48, 435635), (60, 348508), (80, 261381), (120, 174254), (151, 138480), (240, 87127), (302, 69240), (453, 46160), (577, 36240), (604, 34620), (755, 27696), (906, 23080), (1154, 18120), (1208, 17310), (1510, 13848), (1731, 12080), (1812, 11540), (2265, 9232), (2308, 9060), (2416, 8655), (2885, 7248), (3020, 6924), (3462, 6040), (3624, 5770), (4530, 4616)]