18854020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2411}}^1$

素因数の和:2460

約数の個数: 48

約数和(自身を含む): 43763328

約数和(自身を除く): 24909308

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 2411, 3910, 4822, 7820, 9644, 12055, 24110, 40987, 48220, 55453, 81974, 110906, 163948, 204935, 221812, 277265, 409870, 554530, 819740, 942701, 1109060, 1885402, 3770804, 4713505, 9427010, 18854020]

約数ペア:

[(1, 18854020), (2, 9427010), (4, 4713505), (5, 3770804), (10, 1885402), (17, 1109060), (20, 942701), (23, 819740), (34, 554530), (46, 409870), (68, 277265), (85, 221812), (92, 204935), (115, 163948), (170, 110906), (230, 81974), (340, 55453), (391, 48220), (460, 40987), (782, 24110), (1564, 12055), (1955, 9644), (2411, 7820), (3910, 4822)]