55881080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{613}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 131297760

約数和(自身を除く): 75416680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 212, 215, 265, 344, 424, 430, 530, 613, 860, 1060, 1226, 1720, 2120, 2279, 2452, 3065, 4558, 4904, 6130, 9116, 11395, 12260, 18232, 22790, 24520, 26359, 32489, 45580, 52718, 64978, 91160, 105436, 129956, 131795, 162445, 210872, 259912, 263590, 324890, 527180, 649780, 1054360, 1299560, 1397027, 2794054, 5588108, 6985135, 11176216, 13970270, 27940540, 55881080]

約数ペア:

[(1, 55881080), (2, 27940540), (4, 13970270), (5, 11176216), (8, 6985135), (10, 5588108), (20, 2794054), (40, 1397027), (43, 1299560), (53, 1054360), (86, 649780), (106, 527180), (172, 324890), (212, 263590), (215, 259912), (265, 210872), (344, 162445), (424, 131795), (430, 129956), (530, 105436), (613, 91160), (860, 64978), (1060, 52718), (1226, 45580), (1720, 32489), (2120, 26359), (2279, 24520), (2452, 22790), (3065, 18232), (4558, 12260), (4904, 11395), (6130, 9116)]