20509290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7351}}^1$

素因数の和:7395

約数の個数: 48

約数和(自身を含む): 55051776

約数和(自身を除く): 34542486

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7351, 14702, 22053, 36755, 44106, 66159, 73510, 110265, 132318, 220530, 227881, 330795, 455762, 661590, 683643, 1139405, 1367286, 2050929, 2278810, 3418215, 4101858, 6836430, 10254645, 20509290]

約数ペア:

[(1, 20509290), (2, 10254645), (3, 6836430), (5, 4101858), (6, 3418215), (9, 2278810), (10, 2050929), (15, 1367286), (18, 1139405), (30, 683643), (31, 661590), (45, 455762), (62, 330795), (90, 227881), (93, 220530), (155, 132318), (186, 110265), (279, 73510), (310, 66159), (465, 44106), (558, 36755), (930, 22053), (1395, 14702), (2790, 7351)]