20670525

素因数分解:

$3^3\times 5^2\times {\mathrm{113}}^1\times {\mathrm{271}}^1$

素因数の和:403

約数の個数: 48

約数和(自身を含む): 38449920

約数和(自身を除く): 17779395

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 113, 135, 225, 271, 339, 565, 675, 813, 1017, 1355, 1695, 2439, 2825, 3051, 4065, 5085, 6775, 7317, 8475, 12195, 15255, 20325, 25425, 30623, 36585, 60975, 76275, 91869, 153115, 182925, 275607, 459345, 765575, 826821, 1378035, 2296725, 4134105, 6890175, 20670525]

約数ペア:

[(1, 20670525), (3, 6890175), (5, 4134105), (9, 2296725), (15, 1378035), (25, 826821), (27, 765575), (45, 459345), (75, 275607), (113, 182925), (135, 153115), (225, 91869), (271, 76275), (339, 60975), (565, 36585), (675, 30623), (813, 25425), (1017, 20325), (1355, 15255), (1695, 12195), (2439, 8475), (2825, 7317), (3051, 6775), (4065, 5085)]