19811250

素因数分解:

$2^1\times 3^3\times 5^4\times {\mathrm{587}}^1$

素因数の和:618

約数の個数: 80

約数和(自身を含む): 55107360

約数和(自身を除く): 35296110

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 90, 125, 135, 150, 225, 250, 270, 375, 450, 587, 625, 675, 750, 1125, 1174, 1250, 1350, 1761, 1875, 2250, 2935, 3375, 3522, 3750, 5283, 5625, 5870, 6750, 8805, 10566, 11250, 14675, 15849, 16875, 17610, 26415, 29350, 31698, 33750, 44025, 52830, 73375, 79245, 88050, 132075, 146750, 158490, 220125, 264150, 366875, 396225, 440250, 660375, 733750, 792450, 1100625, 1320750, 1981125, 2201250, 3301875, 3962250, 6603750, 9905625, 19811250]

約数ペア:

[(1, 19811250), (2, 9905625), (3, 6603750), (5, 3962250), (6, 3301875), (9, 2201250), (10, 1981125), (15, 1320750), (18, 1100625), (25, 792450), (27, 733750), (30, 660375), (45, 440250), (50, 396225), (54, 366875), (75, 264150), (90, 220125), (125, 158490), (135, 146750), (150, 132075), (225, 88050), (250, 79245), (270, 73375), (375, 52830), (450, 44025), (587, 33750), (625, 31698), (675, 29350), (750, 26415), (1125, 17610), (1174, 16875), (1250, 15849), (1350, 14675), (1761, 11250), (1875, 10566), (2250, 8805), (2935, 6750), (3375, 5870), (3522, 5625), (3750, 5283)]