31418720

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11551}}^1$

素因数の和:11583

約数の個数: 48

約数和(自身を含む): 78599808

約数和(自身を除く): 47181088

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 11551, 23102, 46204, 57755, 92408, 115510, 184816, 196367, 231020, 369632, 392734, 462040, 785468, 924080, 981835, 1570936, 1848160, 1963670, 3141872, 3927340, 6283744, 7854680, 15709360, 31418720]

約数ペア:

[(1, 31418720), (2, 15709360), (4, 7854680), (5, 6283744), (8, 3927340), (10, 3141872), (16, 1963670), (17, 1848160), (20, 1570936), (32, 981835), (34, 924080), (40, 785468), (68, 462040), (80, 392734), (85, 369632), (136, 231020), (160, 196367), (170, 184816), (272, 115510), (340, 92408), (544, 57755), (680, 46204), (1360, 23102), (2720, 11551)]