20452440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4157}}^1$

素因数の和:4212

約数の個数: 64

約数和(自身を含む): 62868960

約数和(自身を除く): 42416520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4157, 4920, 8314, 12471, 16628, 20785, 24942, 33256, 41570, 49884, 62355, 83140, 99768, 124710, 166280, 170437, 249420, 340874, 498840, 511311, 681748, 852185, 1022622, 1363496, 1704370, 2045244, 2556555, 3408740, 4090488, 5113110, 6817480, 10226220, 20452440]

約数ペア:

[(1, 20452440), (2, 10226220), (3, 6817480), (4, 5113110), (5, 4090488), (6, 3408740), (8, 2556555), (10, 2045244), (12, 1704370), (15, 1363496), (20, 1022622), (24, 852185), (30, 681748), (40, 511311), (41, 498840), (60, 340874), (82, 249420), (120, 170437), (123, 166280), (164, 124710), (205, 99768), (246, 83140), (328, 62355), (410, 49884), (492, 41570), (615, 33256), (820, 24942), (984, 20785), (1230, 16628), (1640, 12471), (2460, 8314), (4157, 4920)]