1909186875

素因数分解:

$3^3\times 5^4\times {\mathrm{23}}^1\times {\mathrm{4919}}^1$

素因数の和:4971

約数の個数: 80

約数和(自身を含む): 3688819200

約数和(自身を除く): 1779632325

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 115, 125, 135, 207, 225, 345, 375, 575, 621, 625, 675, 1035, 1125, 1725, 1875, 2875, 3105, 3375, 4919, 5175, 5625, 8625, 14375, 14757, 15525, 16875, 24595, 25875, 43125, 44271, 73785, 77625, 113137, 122975, 129375, 132813, 221355, 339411, 368925, 388125, 565685, 614875, 664065, 1018233, 1106775, 1697055, 1844625, 2828425, 3054699, 3074375, 3320325, 5091165, 5533875, 8485275, 9223125, 14142125, 15273495, 16601625, 25455825, 27669375, 42426375, 70710625, 76367475, 83008125, 127279125, 212131875, 381837375, 636395625, 1909186875]

約数ペア:

[(1, 1909186875), (3, 636395625), (5, 381837375), (9, 212131875), (15, 127279125), (23, 83008125), (25, 76367475), (27, 70710625), (45, 42426375), (69, 27669375), (75, 25455825), (115, 16601625), (125, 15273495), (135, 14142125), (207, 9223125), (225, 8485275), (345, 5533875), (375, 5091165), (575, 3320325), (621, 3074375), (625, 3054699), (675, 2828425), (1035, 1844625), (1125, 1697055), (1725, 1106775), (1875, 1018233), (2875, 664065), (3105, 614875), (3375, 565685), (4919, 388125), (5175, 368925), (5625, 339411), (8625, 221355), (14375, 132813), (14757, 129375), (15525, 122975), (16875, 113137), (24595, 77625), (25875, 73785), (43125, 44271)]