20370928

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 40854528

約数和(自身を除く): 20483600

約数列:

[1, 2, 4, 8, 16, 47, 94, 103, 188, 206, 263, 376, 412, 526, 752, 824, 1052, 1648, 2104, 4208, 4841, 9682, 12361, 19364, 24722, 27089, 38728, 49444, 54178, 77456, 98888, 108356, 197776, 216712, 433424, 1273183, 2546366, 5092732, 10185464, 20370928]

約数ペア:

[(1, 20370928), (2, 10185464), (4, 5092732), (8, 2546366), (16, 1273183), (47, 433424), (94, 216712), (103, 197776), (188, 108356), (206, 98888), (263, 77456), (376, 54178), (412, 49444), (526, 38728), (752, 27089), (824, 24722), (1052, 19364), (1648, 12361), (2104, 9682), (4208, 4841)]