155172375

素因数分解:

$3^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2046

約数の個数: 64

約数和(自身を含む): 299520000

約数和(自身を除く): 144347625

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 115, 125, 135, 207, 225, 345, 375, 575, 621, 675, 1035, 1125, 1725, 1999, 2875, 3105, 3375, 5175, 5997, 8625, 9995, 15525, 17991, 25875, 29985, 45977, 49975, 53973, 77625, 89955, 137931, 149925, 229885, 249875, 269865, 413793, 449775, 689655, 749625, 1149425, 1241379, 1349325, 2068965, 2248875, 3448275, 5747125, 6206895, 6746625, 10344825, 17241375, 31034475, 51724125, 155172375]

約数ペア:

[(1, 155172375), (3, 51724125), (5, 31034475), (9, 17241375), (15, 10344825), (23, 6746625), (25, 6206895), (27, 5747125), (45, 3448275), (69, 2248875), (75, 2068965), (115, 1349325), (125, 1241379), (135, 1149425), (207, 749625), (225, 689655), (345, 449775), (375, 413793), (575, 269865), (621, 249875), (675, 229885), (1035, 149925), (1125, 137931), (1725, 89955), (1999, 77625), (2875, 53973), (3105, 49975), (3375, 45977), (5175, 29985), (5997, 25875), (8625, 17991), (9995, 15525)]