221291200520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{1040489}}^1$

素因数の和:1040922

約数の個数: 64

約数和(自身を含む): 537517134000

約数和(自身を除く): 316225933480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 409, 520, 818, 1636, 2045, 3272, 4090, 5317, 8180, 10634, 16360, 21268, 26585, 42536, 53170, 106340, 212680, 1040489, 2080978, 4161956, 5202445, 8323912, 10404890, 13526357, 20809780, 27052714, 41619560, 54105428, 67631785, 108210856, 135263570, 270527140, 425560001, 541054280, 851120002, 1702240004, 2127800005, 3404480008, 4255600010, 5532280013, 8511200020, 11064560026, 17022400040, 22129120052, 27661400065, 44258240104, 55322800130, 110645600260, 221291200520]

約数ペア:

[(1, 221291200520), (2, 110645600260), (4, 55322800130), (5, 44258240104), (8, 27661400065), (10, 22129120052), (13, 17022400040), (20, 11064560026), (26, 8511200020), (40, 5532280013), (52, 4255600010), (65, 3404480008), (104, 2127800005), (130, 1702240004), (260, 851120002), (409, 541054280), (520, 425560001), (818, 270527140), (1636, 135263570), (2045, 108210856), (3272, 67631785), (4090, 54105428), (5317, 41619560), (8180, 27052714), (10634, 20809780), (16360, 13526357), (21268, 10404890), (26585, 8323912), (42536, 5202445), (53170, 4161956), (106340, 2080978), (212680, 1040489)]