18898490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3929}}^1$

素因数の和:3986

約数の個数: 32

約数和(自身を含む): 37633680

約数和(自身を除く): 18735190

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 3929, 4810, 7858, 19645, 39290, 51077, 102154, 145373, 255385, 290746, 510770, 726865, 1453730, 1889849, 3779698, 9449245, 18898490]

約数ペア:

[(1, 18898490), (2, 9449245), (5, 3779698), (10, 1889849), (13, 1453730), (26, 726865), (37, 510770), (65, 290746), (74, 255385), (130, 145373), (185, 102154), (370, 51077), (481, 39290), (962, 19645), (2405, 7858), (3929, 4810)]