20620860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26437}}^1$

素因数の和:26462

約数の個数: 48

約数和(自身を含む): 62182176

約数和(自身を除く): 41561316

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, 26437, 52874, 79311, 105748, 132185, 158622, 264370, 317244, 343681, 396555, 528740, 687362, 793110, 1031043, 1374724, 1586220, 1718405, 2062086, 3436810, 4124172, 5155215, 6873620, 10310430, 20620860]

約数ペア:

[(1, 20620860), (2, 10310430), (3, 6873620), (4, 5155215), (5, 4124172), (6, 3436810), (10, 2062086), (12, 1718405), (13, 1586220), (15, 1374724), (20, 1031043), (26, 793110), (30, 687362), (39, 528740), (52, 396555), (60, 343681), (65, 317244), (78, 264370), (130, 158622), (156, 132185), (195, 105748), (260, 79311), (390, 52874), (780, 26437)]