20655972

素因数分解:

$2^2\times 3^5\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:367

約数の個数: 72

約数和(自身を含む): 55036800

約数和(自身を除く): 34380828

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 79, 81, 108, 158, 162, 237, 243, 269, 316, 324, 474, 486, 538, 711, 807, 948, 972, 1076, 1422, 1614, 2133, 2421, 2844, 3228, 4266, 4842, 6399, 7263, 8532, 9684, 12798, 14526, 19197, 21251, 21789, 25596, 29052, 38394, 42502, 43578, 63753, 65367, 76788, 85004, 87156, 127506, 130734, 191259, 255012, 261468, 382518, 573777, 765036, 1147554, 1721331, 2295108, 3442662, 5163993, 6885324, 10327986, 20655972]

約数ペア:

[(1, 20655972), (2, 10327986), (3, 6885324), (4, 5163993), (6, 3442662), (9, 2295108), (12, 1721331), (18, 1147554), (27, 765036), (36, 573777), (54, 382518), (79, 261468), (81, 255012), (108, 191259), (158, 130734), (162, 127506), (237, 87156), (243, 85004), (269, 76788), (316, 65367), (324, 63753), (474, 43578), (486, 42502), (538, 38394), (711, 29052), (807, 25596), (948, 21789), (972, 21251), (1076, 19197), (1422, 14526), (1614, 12798), (2133, 9684), (2421, 8532), (2844, 7263), (3228, 6399), (4266, 4842)]