205005720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{100493}}^1$

素因数の和:100524

約数の個数: 64

約数和(自身を含む): 651201120

約数和(自身を除く): 446195400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 100493, 200986, 301479, 401972, 502465, 602958, 803944, 1004930, 1205916, 1507395, 1708381, 2009860, 2411832, 3014790, 3416762, 4019720, 5125143, 6029580, 6833524, 8541905, 10250286, 12059160, 13667048, 17083810, 20500572, 25625715, 34167620, 41001144, 51251430, 68335240, 102502860, 205005720]

約数ペア:

[(1, 205005720), (2, 102502860), (3, 68335240), (4, 51251430), (5, 41001144), (6, 34167620), (8, 25625715), (10, 20500572), (12, 17083810), (15, 13667048), (17, 12059160), (20, 10250286), (24, 8541905), (30, 6833524), (34, 6029580), (40, 5125143), (51, 4019720), (60, 3416762), (68, 3014790), (85, 2411832), (102, 2009860), (120, 1708381), (136, 1507395), (170, 1205916), (204, 1004930), (255, 803944), (340, 602958), (408, 502465), (510, 401972), (680, 301479), (1020, 200986), (2040, 100493)]