20153456

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{577}}^1$

素因数の和:681

約数の個数: 40

約数和(自身を含む): 40853040

約数和(自身を除く): 20699584

約数列:

[1, 2, 4, 8, 16, 37, 59, 74, 118, 148, 236, 296, 472, 577, 592, 944, 1154, 2183, 2308, 4366, 4616, 8732, 9232, 17464, 21349, 34043, 34928, 42698, 68086, 85396, 136172, 170792, 272344, 341584, 544688, 1259591, 2519182, 5038364, 10076728, 20153456]

約数ペア:

[(1, 20153456), (2, 10076728), (4, 5038364), (8, 2519182), (16, 1259591), (37, 544688), (59, 341584), (74, 272344), (118, 170792), (148, 136172), (236, 85396), (296, 68086), (472, 42698), (577, 34928), (592, 34043), (944, 21349), (1154, 17464), (2183, 9232), (2308, 8732), (4366, 4616)]