51556440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{33049}}^1$

素因数の和:33076

約数の個数: 64

約数和(自身を含む): 166572000

約数和(自身を除く): 115015560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 33049, 66098, 99147, 132196, 165245, 198294, 264392, 330490, 396588, 429637, 495735, 660980, 793176, 859274, 991470, 1288911, 1321960, 1718548, 1982940, 2148185, 2577822, 3437096, 3965880, 4296370, 5155644, 6444555, 8592740, 10311288, 12889110, 17185480, 25778220, 51556440]

約数ペア:

[(1, 51556440), (2, 25778220), (3, 17185480), (4, 12889110), (5, 10311288), (6, 8592740), (8, 6444555), (10, 5155644), (12, 4296370), (13, 3965880), (15, 3437096), (20, 2577822), (24, 2148185), (26, 1982940), (30, 1718548), (39, 1321960), (40, 1288911), (52, 991470), (60, 859274), (65, 793176), (78, 660980), (104, 495735), (120, 429637), (130, 396588), (156, 330490), (195, 264392), (260, 198294), (312, 165245), (390, 132196), (520, 99147), (780, 66098), (1560, 33049)]