20748060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1579}}^1$

素因数の和:1667

約数の個数: 72

約数和(自身を含む): 63838320

約数和(自身を除く): 43090260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 292, 365, 438, 657, 730, 876, 1095, 1314, 1460, 1579, 2190, 2628, 3158, 3285, 4380, 4737, 6316, 6570, 7895, 9474, 13140, 14211, 15790, 18948, 23685, 28422, 31580, 47370, 56844, 71055, 94740, 115267, 142110, 230534, 284220, 345801, 461068, 576335, 691602, 1037403, 1152670, 1383204, 1729005, 2074806, 2305340, 3458010, 4149612, 5187015, 6916020, 10374030, 20748060]

約数ペア:

[(1, 20748060), (2, 10374030), (3, 6916020), (4, 5187015), (5, 4149612), (6, 3458010), (9, 2305340), (10, 2074806), (12, 1729005), (15, 1383204), (18, 1152670), (20, 1037403), (30, 691602), (36, 576335), (45, 461068), (60, 345801), (73, 284220), (90, 230534), (146, 142110), (180, 115267), (219, 94740), (292, 71055), (365, 56844), (438, 47370), (657, 31580), (730, 28422), (876, 23685), (1095, 18948), (1314, 15790), (1460, 14211), (1579, 13140), (2190, 9474), (2628, 7895), (3158, 6570), (3285, 6316), (4380, 4737)]