8780460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11257}}^1$

素因数の和:11282

約数の個数: 48

約数和(自身を含む): 26478816

約数和(自身を除く): 17698356

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 11257, 22514, 33771, 45028, 56285, 67542, 112570, 135084, 146341, 168855, 225140, 292682, 337710, 439023, 585364, 675420, 731705, 878046, 1463410, 1756092, 2195115, 2926820, 4390230, 8780460]

約数ペア:

[(1, 8780460), (2, 4390230), (3, 2926820), (4, 2195115), (5, 1756092), (6, 1463410), (10, 878046), (12, 731705), (13, 675420), (15, 585364), (20, 439023), (26, 337710), (30, 292682), (39, 225140), (52, 168855), (60, 146341), (65, 135084), (78, 112570), (130, 67542), (156, 56285), (195, 45028), (260, 33771), (390, 22514), (780, 11257)]