90778880

素因数分解:

$2^8\times 5^1\times {\mathrm{70921}}^1$

素因数の和:70942

約数の個数: 36

約数和(自身を含む): 217446852

約数和(自身を除く): 126667972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 70921, 141842, 283684, 354605, 567368, 709210, 1134736, 1418420, 2269472, 2836840, 4538944, 5673680, 9077888, 11347360, 18155776, 22694720, 45389440, 90778880]

約数ペア:

[(1, 90778880), (2, 45389440), (4, 22694720), (5, 18155776), (8, 11347360), (10, 9077888), (16, 5673680), (20, 4538944), (32, 2836840), (40, 2269472), (64, 1418420), (80, 1134736), (128, 709210), (160, 567368), (256, 354605), (320, 283684), (640, 141842), (1280, 70921)]