81944240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:187

約数の個数: 160

約数和(自身を含む): 230985216

約数和(自身を除く): 149040976

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 43, 56, 70, 80, 82, 83, 86, 112, 140, 164, 166, 172, 205, 215, 280, 287, 301, 328, 332, 344, 410, 415, 430, 560, 574, 581, 602, 656, 664, 688, 820, 830, 860, 1148, 1162, 1204, 1328, 1435, 1505, 1640, 1660, 1720, 1763, 2296, 2324, 2408, 2870, 2905, 3010, 3280, 3320, 3403, 3440, 3526, 3569, 4592, 4648, 4816, 5740, 5810, 6020, 6640, 6806, 7052, 7138, 8815, 9296, 11480, 11620, 12040, 12341, 13612, 14104, 14276, 17015, 17630, 17845, 22960, 23240, 23821, 24080, 24682, 24983, 27224, 28208, 28552, 34030, 35260, 35690, 46480, 47642, 49364, 49966, 54448, 57104, 61705, 68060, 70520, 71380, 95284, 98728, 99932, 119105, 123410, 124915, 136120, 141040, 142760, 146329, 190568, 197456, 199864, 238210, 246820, 249830, 272240, 285520, 292658, 381136, 399728, 476420, 493640, 499660, 585316, 731645, 952840, 987280, 999320, 1024303, 1170632, 1463290, 1905680, 1998640, 2048606, 2341264, 2926580, 4097212, 5121515, 5853160, 8194424, 10243030, 11706320, 16388848, 20486060, 40972120, 81944240]

約数ペア:

[(1, 81944240), (2, 40972120), (4, 20486060), (5, 16388848), (7, 11706320), (8, 10243030), (10, 8194424), (14, 5853160), (16, 5121515), (20, 4097212), (28, 2926580), (35, 2341264), (40, 2048606), (41, 1998640), (43, 1905680), (56, 1463290), (70, 1170632), (80, 1024303), (82, 999320), (83, 987280), (86, 952840), (112, 731645), (140, 585316), (164, 499660), (166, 493640), (172, 476420), (205, 399728), (215, 381136), (280, 292658), (287, 285520), (301, 272240), (328, 249830), (332, 246820), (344, 238210), (410, 199864), (415, 197456), (430, 190568), (560, 146329), (574, 142760), (581, 141040), (602, 136120), (656, 124915), (664, 123410), (688, 119105), (820, 99932), (830, 98728), (860, 95284), (1148, 71380), (1162, 70520), (1204, 68060), (1328, 61705), (1435, 57104), (1505, 54448), (1640, 49966), (1660, 49364), (1720, 47642), (1763, 46480), (2296, 35690), (2324, 35260), (2408, 34030), (2870, 28552), (2905, 28208), (3010, 27224), (3280, 24983), (3320, 24682), (3403, 24080), (3440, 23821), (3526, 23240), (3569, 22960), (4592, 17845), (4648, 17630), (4816, 17015), (5740, 14276), (5810, 14104), (6020, 13612), (6640, 12341), (6806, 12040), (7052, 11620), (7138, 11480), (8815, 9296)]