20497824

素因数分解:

$2^5\times 3^2\times {\mathrm{103}}^1\times {\mathrm{691}}^1$

素因数の和:810

約数の個数: 72

約数和(自身を含む): 58941792

約数和(自身を除く): 38443968

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 103, 144, 206, 288, 309, 412, 618, 691, 824, 927, 1236, 1382, 1648, 1854, 2073, 2472, 2764, 3296, 3708, 4146, 4944, 5528, 6219, 7416, 8292, 9888, 11056, 12438, 14832, 16584, 22112, 24876, 29664, 33168, 49752, 66336, 71173, 99504, 142346, 199008, 213519, 284692, 427038, 569384, 640557, 854076, 1138768, 1281114, 1708152, 2277536, 2562228, 3416304, 5124456, 6832608, 10248912, 20497824]

約数ペア:

[(1, 20497824), (2, 10248912), (3, 6832608), (4, 5124456), (6, 3416304), (8, 2562228), (9, 2277536), (12, 1708152), (16, 1281114), (18, 1138768), (24, 854076), (32, 640557), (36, 569384), (48, 427038), (72, 284692), (96, 213519), (103, 199008), (144, 142346), (206, 99504), (288, 71173), (309, 66336), (412, 49752), (618, 33168), (691, 29664), (824, 24876), (927, 22112), (1236, 16584), (1382, 14832), (1648, 12438), (1854, 11056), (2073, 9888), (2472, 8292), (2764, 7416), (3296, 6219), (3708, 5528), (4146, 4944)]