87894940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{21649}}^1$

素因数の和:21694

約数の個数: 48

約数和(自身を含む): 218232000

約数和(自身を除く): 130337060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 21649, 43298, 86596, 108245, 151543, 216490, 303086, 432980, 606172, 627821, 757715, 1255642, 1515430, 2511284, 3030860, 3139105, 4394747, 6278210, 8789494, 12556420, 17578988, 21973735, 43947470, 87894940]

約数ペア:

[(1, 87894940), (2, 43947470), (4, 21973735), (5, 17578988), (7, 12556420), (10, 8789494), (14, 6278210), (20, 4394747), (28, 3139105), (29, 3030860), (35, 2511284), (58, 1515430), (70, 1255642), (116, 757715), (140, 627821), (145, 606172), (203, 432980), (290, 303086), (406, 216490), (580, 151543), (812, 108245), (1015, 86596), (2030, 43298), (4060, 21649)]