1299682640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{955649}}^1$

素因数の和:955679

約数の個数: 40

約数和(自身を含む): 3199516200

約数和(自身を除く): 1899833560

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 955649, 1911298, 3822596, 4778245, 7645192, 9556490, 15290384, 16246033, 19112980, 32492066, 38225960, 64984132, 76451920, 81230165, 129968264, 162460330, 259936528, 324920660, 649841320, 1299682640]

約数ペア:

[(1, 1299682640), (2, 649841320), (4, 324920660), (5, 259936528), (8, 162460330), (10, 129968264), (16, 81230165), (17, 76451920), (20, 64984132), (34, 38225960), (40, 32492066), (68, 19112980), (80, 16246033), (85, 15290384), (136, 9556490), (170, 7645192), (272, 4778245), (340, 3822596), (680, 1911298), (1360, 955649)]