210807540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{2347}}^1$

素因数の和:2861

約数の個数: 72

約数和(自身を含む): 641004000

約数和(自身を除く): 430196460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 499, 998, 1497, 1996, 2347, 2495, 2994, 4491, 4694, 4990, 5988, 7041, 7485, 8982, 9388, 9980, 11735, 14082, 14970, 17964, 21123, 22455, 23470, 28164, 29940, 35205, 42246, 44910, 46940, 70410, 84492, 89820, 105615, 140820, 211230, 422460, 1171153, 2342306, 3513459, 4684612, 5855765, 7026918, 10540377, 11711530, 14053836, 17567295, 21080754, 23423060, 35134590, 42161508, 52701885, 70269180, 105403770, 210807540]

約数ペア:

[(1, 210807540), (2, 105403770), (3, 70269180), (4, 52701885), (5, 42161508), (6, 35134590), (9, 23423060), (10, 21080754), (12, 17567295), (15, 14053836), (18, 11711530), (20, 10540377), (30, 7026918), (36, 5855765), (45, 4684612), (60, 3513459), (90, 2342306), (180, 1171153), (499, 422460), (998, 211230), (1497, 140820), (1996, 105615), (2347, 89820), (2495, 84492), (2994, 70410), (4491, 46940), (4694, 44910), (4990, 42246), (5988, 35205), (7041, 29940), (7485, 28164), (8982, 23470), (9388, 22455), (9980, 21123), (11735, 17964), (14082, 14970)]