27481480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1289}}^1$

素因数の和:1354

約数の個数: 64

約数和(自身を含む): 68266800

約数和(自身を除く): 40785320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 820, 1066, 1289, 1640, 2132, 2578, 2665, 4264, 5156, 5330, 6445, 10312, 10660, 12890, 16757, 21320, 25780, 33514, 51560, 52849, 67028, 83785, 105698, 134056, 167570, 211396, 264245, 335140, 422792, 528490, 670280, 687037, 1056980, 1374074, 2113960, 2748148, 3435185, 5496296, 6870370, 13740740, 27481480]

約数ペア:

[(1, 27481480), (2, 13740740), (4, 6870370), (5, 5496296), (8, 3435185), (10, 2748148), (13, 2113960), (20, 1374074), (26, 1056980), (40, 687037), (41, 670280), (52, 528490), (65, 422792), (82, 335140), (104, 264245), (130, 211396), (164, 167570), (205, 134056), (260, 105698), (328, 83785), (410, 67028), (520, 52849), (533, 51560), (820, 33514), (1066, 25780), (1289, 21320), (1640, 16757), (2132, 12890), (2578, 10660), (2665, 10312), (4264, 6445), (5156, 5330)]