7621880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{167}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 19837440

約数和(自身を除く): 12215560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 163, 167, 280, 326, 334, 652, 668, 815, 835, 1141, 1169, 1304, 1336, 1630, 1670, 2282, 2338, 3260, 3340, 4564, 4676, 5705, 5845, 6520, 6680, 9128, 9352, 11410, 11690, 22820, 23380, 27221, 45640, 46760, 54442, 108884, 136105, 190547, 217768, 272210, 381094, 544420, 762188, 952735, 1088840, 1524376, 1905470, 3810940, 7621880]

約数ペア:

[(1, 7621880), (2, 3810940), (4, 1905470), (5, 1524376), (7, 1088840), (8, 952735), (10, 762188), (14, 544420), (20, 381094), (28, 272210), (35, 217768), (40, 190547), (56, 136105), (70, 108884), (140, 54442), (163, 46760), (167, 45640), (280, 27221), (326, 23380), (334, 22820), (652, 11690), (668, 11410), (815, 9352), (835, 9128), (1141, 6680), (1169, 6520), (1304, 5845), (1336, 5705), (1630, 4676), (1670, 4564), (2282, 3340), (2338, 3260)]