20181593900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{68389}}^1$

素因数の和:68643

約数の個数: 72

約数和(自身を含む): 47371290960

約数和(自身を除く): 27189697060

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 227, 260, 325, 454, 650, 908, 1135, 1300, 2270, 2951, 4540, 5675, 5902, 11350, 11804, 14755, 22700, 29510, 59020, 68389, 73775, 136778, 147550, 273556, 295100, 341945, 683890, 889057, 1367780, 1709725, 1778114, 3419450, 3556228, 4445285, 6838900, 8890570, 15524303, 17781140, 22226425, 31048606, 44452850, 62097212, 77621515, 88905700, 155243030, 201815939, 310486060, 388107575, 403631878, 776215150, 807263756, 1009079695, 1552430300, 2018159390, 4036318780, 5045398475, 10090796950, 20181593900]

約数ペア:

[(1, 20181593900), (2, 10090796950), (4, 5045398475), (5, 4036318780), (10, 2018159390), (13, 1552430300), (20, 1009079695), (25, 807263756), (26, 776215150), (50, 403631878), (52, 388107575), (65, 310486060), (100, 201815939), (130, 155243030), (227, 88905700), (260, 77621515), (325, 62097212), (454, 44452850), (650, 31048606), (908, 22226425), (1135, 17781140), (1300, 15524303), (2270, 8890570), (2951, 6838900), (4540, 4445285), (5675, 3556228), (5902, 3419450), (11350, 1778114), (11804, 1709725), (14755, 1367780), (22700, 889057), (29510, 683890), (59020, 341945), (68389, 295100), (73775, 273556), (136778, 147550)]