90370640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{66449}}^1$

素因数の和:66479

約数の個数: 40

約数和(自身を含む): 222474600

約数和(自身を除く): 132103960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 66449, 132898, 265796, 332245, 531592, 664490, 1063184, 1129633, 1328980, 2259266, 2657960, 4518532, 5315920, 5648165, 9037064, 11296330, 18074128, 22592660, 45185320, 90370640]

約数ペア:

[(1, 90370640), (2, 45185320), (4, 22592660), (5, 18074128), (8, 11296330), (10, 9037064), (16, 5648165), (17, 5315920), (20, 4518532), (34, 2657960), (40, 2259266), (68, 1328980), (80, 1129633), (85, 1063184), (136, 664490), (170, 531592), (272, 332245), (340, 265796), (680, 132898), (1360, 66449)]