388771875

素因数分解:

$3^2\times 5^5\times {\mathrm{23}}^1\times {\mathrm{601}}^1$

素因数の和:655

約数の個数: 72

約数和(自身を含む): 733640544

約数和(自身を除く): 344868669

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 125, 207, 225, 345, 375, 575, 601, 625, 1035, 1125, 1725, 1803, 1875, 2875, 3005, 3125, 5175, 5409, 5625, 8625, 9015, 9375, 13823, 14375, 15025, 25875, 27045, 28125, 41469, 43125, 45075, 69115, 71875, 75125, 124407, 129375, 135225, 207345, 215625, 225375, 345575, 375625, 622035, 646875, 676125, 1036725, 1126875, 1727875, 1878125, 3110175, 3380625, 5183625, 5634375, 8639375, 15550875, 16903125, 25918125, 43196875, 77754375, 129590625, 388771875]

約数ペア:

[(1, 388771875), (3, 129590625), (5, 77754375), (9, 43196875), (15, 25918125), (23, 16903125), (25, 15550875), (45, 8639375), (69, 5634375), (75, 5183625), (115, 3380625), (125, 3110175), (207, 1878125), (225, 1727875), (345, 1126875), (375, 1036725), (575, 676125), (601, 646875), (625, 622035), (1035, 375625), (1125, 345575), (1725, 225375), (1803, 215625), (1875, 207345), (2875, 135225), (3005, 129375), (3125, 124407), (5175, 75125), (5409, 71875), (5625, 69115), (8625, 45075), (9015, 43125), (9375, 41469), (13823, 28125), (14375, 27045), (15025, 25875)]