19801430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{10589}}^1$

素因数の和:10624

約数の個数: 32

約数和(自身を含む): 41173920

約数和(自身を除く): 21372490

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 10589, 21178, 52945, 105890, 116479, 180013, 232958, 360026, 582395, 900065, 1164790, 1800130, 1980143, 3960286, 9900715, 19801430]

約数ペア:

[(1, 19801430), (2, 9900715), (5, 3960286), (10, 1980143), (11, 1800130), (17, 1164790), (22, 900065), (34, 582395), (55, 360026), (85, 232958), (110, 180013), (170, 116479), (187, 105890), (374, 52945), (935, 21178), (1870, 10589)]