81152500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:275

約数の個数: 120

約数和(自身を含む): 209407968

約数和(自身を除く): 128255468

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 125, 130, 143, 220, 227, 250, 260, 275, 286, 325, 454, 500, 550, 572, 625, 650, 715, 908, 1100, 1135, 1250, 1300, 1375, 1430, 1625, 2270, 2497, 2500, 2750, 2860, 2951, 3250, 3575, 4540, 4994, 5500, 5675, 5902, 6500, 6875, 7150, 8125, 9988, 11350, 11804, 12485, 13750, 14300, 14755, 16250, 17875, 22700, 24970, 27500, 28375, 29510, 32461, 32500, 35750, 49940, 56750, 59020, 62425, 64922, 71500, 73775, 89375, 113500, 124850, 129844, 141875, 147550, 162305, 178750, 249700, 283750, 295100, 312125, 324610, 357500, 368875, 567500, 624250, 649220, 737750, 811525, 1248500, 1475500, 1560625, 1623050, 1844375, 3121250, 3246100, 3688750, 4057625, 6242500, 7377500, 8115250, 16230500, 20288125, 40576250, 81152500]

約数ペア:

[(1, 81152500), (2, 40576250), (4, 20288125), (5, 16230500), (10, 8115250), (11, 7377500), (13, 6242500), (20, 4057625), (22, 3688750), (25, 3246100), (26, 3121250), (44, 1844375), (50, 1623050), (52, 1560625), (55, 1475500), (65, 1248500), (100, 811525), (110, 737750), (125, 649220), (130, 624250), (143, 567500), (220, 368875), (227, 357500), (250, 324610), (260, 312125), (275, 295100), (286, 283750), (325, 249700), (454, 178750), (500, 162305), (550, 147550), (572, 141875), (625, 129844), (650, 124850), (715, 113500), (908, 89375), (1100, 73775), (1135, 71500), (1250, 64922), (1300, 62425), (1375, 59020), (1430, 56750), (1625, 49940), (2270, 35750), (2497, 32500), (2500, 32461), (2750, 29510), (2860, 28375), (2951, 27500), (3250, 24970), (3575, 22700), (4540, 17875), (4994, 16250), (5500, 14755), (5675, 14300), (5902, 13750), (6500, 12485), (6875, 11804), (7150, 11350), (8125, 9988)]