647490832

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{2380481}}^1$

素因数の和:2380506

約数の個数: 20

約数和(自身を含む): 1328308956

約数和(自身を除く): 680818124

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 2380481, 4760962, 9521924, 19043848, 38087696, 40468177, 80936354, 161872708, 323745416, 647490832]

約数ペア:

[(1, 647490832), (2, 323745416), (4, 161872708), (8, 80936354), (16, 40468177), (17, 38087696), (34, 19043848), (68, 9521924), (136, 4760962), (272, 2380481)]