18811910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3911}}^1$

素因数の和:3968

約数の個数: 32

約数和(自身を含む): 37461312

約数和(自身を除く): 18649402

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 3911, 4810, 7822, 19555, 39110, 50843, 101686, 144707, 254215, 289414, 508430, 723535, 1447070, 1881191, 3762382, 9405955, 18811910]

約数ペア:

[(1, 18811910), (2, 9405955), (5, 3762382), (10, 1881191), (13, 1447070), (26, 723535), (37, 508430), (65, 289414), (74, 254215), (130, 144707), (185, 101686), (370, 50843), (481, 39110), (962, 19555), (2405, 7822), (3911, 4810)]