1378000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1$

素因数の和:89

約数の個数: 80

約数和(自身を含む): 3656016

約数和(自身を除く): 2278016

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 53, 65, 80, 100, 104, 106, 125, 130, 200, 208, 212, 250, 260, 265, 325, 400, 424, 500, 520, 530, 650, 689, 848, 1000, 1040, 1060, 1300, 1325, 1378, 1625, 2000, 2120, 2600, 2650, 2756, 3250, 3445, 4240, 5200, 5300, 5512, 6500, 6625, 6890, 10600, 11024, 13000, 13250, 13780, 17225, 21200, 26000, 26500, 27560, 34450, 53000, 55120, 68900, 86125, 106000, 137800, 172250, 275600, 344500, 689000, 1378000]

約数ペア:

[(1, 1378000), (2, 689000), (4, 344500), (5, 275600), (8, 172250), (10, 137800), (13, 106000), (16, 86125), (20, 68900), (25, 55120), (26, 53000), (40, 34450), (50, 27560), (52, 26500), (53, 26000), (65, 21200), (80, 17225), (100, 13780), (104, 13250), (106, 13000), (125, 11024), (130, 10600), (200, 6890), (208, 6625), (212, 6500), (250, 5512), (260, 5300), (265, 5200), (325, 4240), (400, 3445), (424, 3250), (500, 2756), (520, 2650), (530, 2600), (650, 2120), (689, 2000), (848, 1625), (1000, 1378), (1040, 1325), (1060, 1300)]