77774720

素因数分解:

$2^7\times 5^1\times {\mathrm{121523}}^1$

素因数の和:121542

約数の個数: 32

約数和(自身を含む): 185931720

約数和(自身を除く): 108157000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 121523, 243046, 486092, 607615, 972184, 1215230, 1944368, 2430460, 3888736, 4860920, 7777472, 9721840, 15554944, 19443680, 38887360, 77774720]

約数ペア:

[(1, 77774720), (2, 38887360), (4, 19443680), (5, 15554944), (8, 9721840), (10, 7777472), (16, 4860920), (20, 3888736), (32, 2430460), (40, 1944368), (64, 1215230), (80, 972184), (128, 607615), (160, 486092), (320, 243046), (640, 121523)]