72640040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{8689}}^1$

素因数の和:8730

約数の個数: 64

約数和(自身を含む): 187704000

約数和(自身を除く): 115063960

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 4180, 8360, 8689, 17378, 34756, 43445, 69512, 86890, 95579, 165091, 173780, 191158, 330182, 347560, 382316, 477895, 660364, 764632, 825455, 955790, 1320728, 1650910, 1816001, 1911580, 3301820, 3632002, 3823160, 6603640, 7264004, 9080005, 14528008, 18160010, 36320020, 72640040]

約数ペア:

[(1, 72640040), (2, 36320020), (4, 18160010), (5, 14528008), (8, 9080005), (10, 7264004), (11, 6603640), (19, 3823160), (20, 3632002), (22, 3301820), (38, 1911580), (40, 1816001), (44, 1650910), (55, 1320728), (76, 955790), (88, 825455), (95, 764632), (110, 660364), (152, 477895), (190, 382316), (209, 347560), (220, 330182), (380, 191158), (418, 173780), (440, 165091), (760, 95579), (836, 86890), (1045, 69512), (1672, 43445), (2090, 34756), (4180, 17378), (8360, 8689)]