320739900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{82241}}^1$

素因数の和:82271

約数の個数: 72

約数和(自身を含む): 999404784

約数和(自身を除く): 678664884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 82241, 164482, 246723, 328964, 411205, 493446, 822410, 986892, 1069133, 1233615, 1644820, 2056025, 2138266, 2467230, 3207399, 4112050, 4276532, 4934460, 5345665, 6168075, 6414798, 8224100, 10691330, 12336150, 12829596, 16036995, 21382660, 24672300, 26728325, 32073990, 53456650, 64147980, 80184975, 106913300, 160369950, 320739900]

約数ペア:

[(1, 320739900), (2, 160369950), (3, 106913300), (4, 80184975), (5, 64147980), (6, 53456650), (10, 32073990), (12, 26728325), (13, 24672300), (15, 21382660), (20, 16036995), (25, 12829596), (26, 12336150), (30, 10691330), (39, 8224100), (50, 6414798), (52, 6168075), (60, 5345665), (65, 4934460), (75, 4276532), (78, 4112050), (100, 3207399), (130, 2467230), (150, 2138266), (156, 2056025), (195, 1644820), (260, 1233615), (300, 1069133), (325, 986892), (390, 822410), (650, 493446), (780, 411205), (975, 328964), (1300, 246723), (1950, 164482), (3900, 82241)]