87421840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2423}}^1$

素因数の和:2488

約数の個数: 80

約数和(自身を含む): 227235456

約数和(自身を除く): 139813616

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 110, 164, 176, 205, 220, 328, 410, 440, 451, 656, 820, 880, 902, 1640, 1804, 2255, 2423, 3280, 3608, 4510, 4846, 7216, 9020, 9692, 12115, 18040, 19384, 24230, 26653, 36080, 38768, 48460, 53306, 96920, 99343, 106612, 133265, 193840, 198686, 213224, 266530, 397372, 426448, 496715, 533060, 794744, 993430, 1066120, 1092773, 1589488, 1986860, 2132240, 2185546, 3973720, 4371092, 5463865, 7947440, 8742184, 10927730, 17484368, 21855460, 43710920, 87421840]

約数ペア:

[(1, 87421840), (2, 43710920), (4, 21855460), (5, 17484368), (8, 10927730), (10, 8742184), (11, 7947440), (16, 5463865), (20, 4371092), (22, 3973720), (40, 2185546), (41, 2132240), (44, 1986860), (55, 1589488), (80, 1092773), (82, 1066120), (88, 993430), (110, 794744), (164, 533060), (176, 496715), (205, 426448), (220, 397372), (328, 266530), (410, 213224), (440, 198686), (451, 193840), (656, 133265), (820, 106612), (880, 99343), (902, 96920), (1640, 53306), (1804, 48460), (2255, 38768), (2423, 36080), (3280, 26653), (3608, 24230), (4510, 19384), (4846, 18040), (7216, 12115), (9020, 9692)]