20147871250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{907}}^1\times {\mathrm{1367}}^1$

素因数の和:2309

約数の個数: 80

約数和(自身を含む): 40744807488

約数和(自身を除く): 20596936238

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 907, 1250, 1367, 1625, 1814, 2734, 3250, 4535, 6835, 8125, 9070, 11791, 13670, 16250, 17771, 22675, 23582, 34175, 35542, 45350, 58955, 68350, 88855, 113375, 117910, 170875, 177710, 226750, 294775, 341750, 444275, 566875, 589550, 854375, 888550, 1133750, 1239869, 1473875, 1708750, 2221375, 2479738, 2947750, 4442750, 6199345, 7369375, 11106875, 12398690, 14738750, 16118297, 22213750, 30996725, 32236594, 61993450, 80591485, 154983625, 161182970, 309967250, 402957425, 774918125, 805914850, 1549836250, 2014787125, 4029574250, 10073935625, 20147871250]

約数ペア:

[(1, 20147871250), (2, 10073935625), (5, 4029574250), (10, 2014787125), (13, 1549836250), (25, 805914850), (26, 774918125), (50, 402957425), (65, 309967250), (125, 161182970), (130, 154983625), (250, 80591485), (325, 61993450), (625, 32236594), (650, 30996725), (907, 22213750), (1250, 16118297), (1367, 14738750), (1625, 12398690), (1814, 11106875), (2734, 7369375), (3250, 6199345), (4535, 4442750), (6835, 2947750), (8125, 2479738), (9070, 2221375), (11791, 1708750), (13670, 1473875), (16250, 1239869), (17771, 1133750), (22675, 888550), (23582, 854375), (34175, 589550), (35542, 566875), (45350, 444275), (58955, 341750), (68350, 294775), (88855, 226750), (113375, 177710), (117910, 170875)]