27940540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{613}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 61272288

約数和(自身を除く): 33331748

約数列:

[1, 2, 4, 5, 10, 20, 43, 53, 86, 106, 172, 212, 215, 265, 430, 530, 613, 860, 1060, 1226, 2279, 2452, 3065, 4558, 6130, 9116, 11395, 12260, 22790, 26359, 32489, 45580, 52718, 64978, 105436, 129956, 131795, 162445, 263590, 324890, 527180, 649780, 1397027, 2794054, 5588108, 6985135, 13970270, 27940540]

約数ペア:

[(1, 27940540), (2, 13970270), (4, 6985135), (5, 5588108), (10, 2794054), (20, 1397027), (43, 649780), (53, 527180), (86, 324890), (106, 263590), (172, 162445), (212, 131795), (215, 129956), (265, 105436), (430, 64978), (530, 52718), (613, 45580), (860, 32489), (1060, 26359), (1226, 22790), (2279, 12260), (2452, 11395), (3065, 9116), (4558, 6130)]