81617671640

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{18057007}}^1$

素因数の和:18057131

約数の個数: 32

約数和(自身を含む): 185264902080

約数和(自身を除く): 103647230440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 18057007, 36114014, 72228028, 90285035, 144456056, 180570070, 361140140, 722280280, 2040441791, 4080883582, 8161767164, 10202208955, 16323534328, 20404417910, 40808835820, 81617671640]

約数ペア:

[(1, 81617671640), (2, 40808835820), (4, 20404417910), (5, 16323534328), (8, 10202208955), (10, 8161767164), (20, 4080883582), (40, 2040441791), (113, 722280280), (226, 361140140), (452, 180570070), (565, 144456056), (904, 90285035), (1130, 72228028), (2260, 36114014), (4520, 18057007)]