28181240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41443}}^1$

素因数の和:41471

約数の個数: 32

約数和(自身を含む): 67139280

約数和(自身を除く): 38958040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 41443, 82886, 165772, 207215, 331544, 414430, 704531, 828860, 1409062, 1657720, 2818124, 3522655, 5636248, 7045310, 14090620, 28181240]

約数ペア:

[(1, 28181240), (2, 14090620), (4, 7045310), (5, 5636248), (8, 3522655), (10, 2818124), (17, 1657720), (20, 1409062), (34, 828860), (40, 704531), (68, 414430), (85, 331544), (136, 207215), (170, 165772), (340, 82886), (680, 41443)]