20792565

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 18605835

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 47, 87, 113, 135, 141, 145, 235, 261, 339, 423, 435, 565, 705, 783, 1017, 1269, 1305, 1363, 1695, 2115, 3051, 3277, 3915, 4089, 5085, 5311, 6345, 6815, 9831, 12267, 15255, 15933, 16385, 20445, 26555, 29493, 36801, 47799, 49155, 61335, 79665, 88479, 143397, 147465, 154019, 184005, 238995, 442395, 462057, 716985, 770095, 1386171, 2310285, 4158513, 6930855, 20792565]

約数ペア:

[(1, 20792565), (3, 6930855), (5, 4158513), (9, 2310285), (15, 1386171), (27, 770095), (29, 716985), (45, 462057), (47, 442395), (87, 238995), (113, 184005), (135, 154019), (141, 147465), (145, 143397), (235, 88479), (261, 79665), (339, 61335), (423, 49155), (435, 47799), (565, 36801), (705, 29493), (783, 26555), (1017, 20445), (1269, 16385), (1305, 15933), (1363, 15255), (1695, 12267), (2115, 9831), (3051, 6815), (3277, 6345), (3915, 5311), (4089, 5085)]