165792640

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19927}}^1$

素因数の和:19959

約数の個数: 64

約数和(自身を含む): 426857760

約数和(自身を除く): 261065120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 19927, 39854, 79708, 99635, 159416, 199270, 259051, 318832, 398540, 518102, 637664, 797080, 1036204, 1275328, 1295255, 1594160, 2072408, 2550656, 2590510, 3188320, 4144816, 5181020, 6376640, 8289632, 10362040, 12753280, 16579264, 20724080, 33158528, 41448160, 82896320, 165792640]

約数ペア:

[(1, 165792640), (2, 82896320), (4, 41448160), (5, 33158528), (8, 20724080), (10, 16579264), (13, 12753280), (16, 10362040), (20, 8289632), (26, 6376640), (32, 5181020), (40, 4144816), (52, 3188320), (64, 2590510), (65, 2550656), (80, 2072408), (104, 1594160), (128, 1295255), (130, 1275328), (160, 1036204), (208, 797080), (260, 637664), (320, 518102), (416, 398540), (520, 318832), (640, 259051), (832, 199270), (1040, 159416), (1664, 99635), (2080, 79708), (4160, 39854), (8320, 19927)]