42145720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61979}}^1$

素因数の和:62007

約数の個数: 32

約数和(自身を含む): 100407600

約数和(自身を除く): 58261880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 61979, 123958, 247916, 309895, 495832, 619790, 1053643, 1239580, 2107286, 2479160, 4214572, 5268215, 8429144, 10536430, 21072860, 42145720]

約数ペア:

[(1, 42145720), (2, 21072860), (4, 10536430), (5, 8429144), (8, 5268215), (10, 4214572), (17, 2479160), (20, 2107286), (34, 1239580), (40, 1053643), (68, 619790), (85, 495832), (136, 309895), (170, 247916), (340, 123958), (680, 61979)]