1387792450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{8731}}^1$

素因数の和:8788

約数の個数: 72

約数和(自身を含む): 2991687984

約数和(自身を除く): 1603895534

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 170, 187, 275, 289, 374, 425, 550, 578, 850, 935, 1445, 1870, 2890, 3179, 4675, 6358, 7225, 8731, 9350, 14450, 15895, 17462, 31790, 43655, 79475, 87310, 96041, 148427, 158950, 192082, 218275, 296854, 436550, 480205, 742135, 960410, 1484270, 1632697, 2401025, 2523259, 3265394, 3710675, 4802050, 5046518, 7421350, 8163485, 12616295, 16326970, 25232590, 27755849, 40817425, 55511698, 63081475, 81634850, 126162950, 138779245, 277558490, 693896225, 1387792450]

約数ペア:

[(1, 1387792450), (2, 693896225), (5, 277558490), (10, 138779245), (11, 126162950), (17, 81634850), (22, 63081475), (25, 55511698), (34, 40817425), (50, 27755849), (55, 25232590), (85, 16326970), (110, 12616295), (170, 8163485), (187, 7421350), (275, 5046518), (289, 4802050), (374, 3710675), (425, 3265394), (550, 2523259), (578, 2401025), (850, 1632697), (935, 1484270), (1445, 960410), (1870, 742135), (2890, 480205), (3179, 436550), (4675, 296854), (6358, 218275), (7225, 192082), (8731, 158950), (9350, 148427), (14450, 96041), (15895, 87310), (17462, 79475), (31790, 43655)]