84521740

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 180986400

約数和(自身を除く): 96464660

約数列:

[1, 2, 4, 5, 10, 20, 113, 149, 226, 251, 298, 452, 502, 565, 596, 745, 1004, 1130, 1255, 1490, 2260, 2510, 2980, 5020, 16837, 28363, 33674, 37399, 56726, 67348, 74798, 84185, 113452, 141815, 149596, 168370, 186995, 283630, 336740, 373990, 567260, 747980, 4226087, 8452174, 16904348, 21130435, 42260870, 84521740]

約数ペア:

[(1, 84521740), (2, 42260870), (4, 21130435), (5, 16904348), (10, 8452174), (20, 4226087), (113, 747980), (149, 567260), (226, 373990), (251, 336740), (298, 283630), (452, 186995), (502, 168370), (565, 149596), (596, 141815), (745, 113452), (1004, 84185), (1130, 74798), (1255, 67348), (1490, 56726), (2260, 37399), (2510, 33674), (2980, 28363), (5020, 16837)]