31258040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3739}}^1$

素因数の和:3780

約数の個数: 64

約数和(自身を含む): 80784000

約数和(自身を除く): 49525960

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, 3739, 4180, 7478, 8360, 14956, 18695, 29912, 37390, 41129, 71041, 74780, 82258, 142082, 149560, 164516, 205645, 284164, 329032, 355205, 411290, 568328, 710410, 781451, 822580, 1420820, 1562902, 1645160, 2841640, 3125804, 3907255, 6251608, 7814510, 15629020, 31258040]

約数ペア:

[(1, 31258040), (2, 15629020), (4, 7814510), (5, 6251608), (8, 3907255), (10, 3125804), (11, 2841640), (19, 1645160), (20, 1562902), (22, 1420820), (38, 822580), (40, 781451), (44, 710410), (55, 568328), (76, 411290), (88, 355205), (95, 329032), (110, 284164), (152, 205645), (190, 164516), (209, 149560), (220, 142082), (380, 82258), (418, 74780), (440, 71041), (760, 41129), (836, 37390), (1045, 29912), (1672, 18695), (2090, 14956), (3739, 8360), (4180, 7478)]