20534280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13163}}^1$

素因数の和:13190

約数の個数: 64

約数和(自身を含む): 66346560

約数和(自身を除く): 45812280

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, 13163, 26326, 39489, 52652, 65815, 78978, 105304, 131630, 157956, 171119, 197445, 263260, 315912, 342238, 394890, 513357, 526520, 684476, 789780, 855595, 1026714, 1368952, 1579560, 1711190, 2053428, 2566785, 3422380, 4106856, 5133570, 6844760, 10267140, 20534280]

約数ペア:

[(1, 20534280), (2, 10267140), (3, 6844760), (4, 5133570), (5, 4106856), (6, 3422380), (8, 2566785), (10, 2053428), (12, 1711190), (13, 1579560), (15, 1368952), (20, 1026714), (24, 855595), (26, 789780), (30, 684476), (39, 526520), (40, 513357), (52, 394890), (60, 342238), (65, 315912), (78, 263260), (104, 197445), (120, 171119), (130, 157956), (156, 131630), (195, 105304), (260, 78978), (312, 65815), (390, 52652), (520, 39489), (780, 26326), (1560, 13163)]