20967460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{743}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 47246976

約数和(自身を除く): 26279516

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 83, 85, 166, 170, 332, 340, 415, 743, 830, 1411, 1486, 1660, 2822, 2972, 3715, 5644, 7055, 7430, 12631, 14110, 14860, 25262, 28220, 50524, 61669, 63155, 123338, 126310, 246676, 252620, 308345, 616690, 1048373, 1233380, 2096746, 4193492, 5241865, 10483730, 20967460]

約数ペア:

[(1, 20967460), (2, 10483730), (4, 5241865), (5, 4193492), (10, 2096746), (17, 1233380), (20, 1048373), (34, 616690), (68, 308345), (83, 252620), (85, 246676), (166, 126310), (170, 123338), (332, 63155), (340, 61669), (415, 50524), (743, 28220), (830, 25262), (1411, 14860), (1486, 14110), (1660, 12631), (2822, 7430), (2972, 7055), (3715, 5644)]