61665820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1259}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 135475200

約数和(自身を除く): 73809380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 620, 790, 1259, 1580, 2449, 2518, 4898, 5036, 6295, 9796, 12245, 12590, 24490, 25180, 39029, 48980, 78058, 99461, 156116, 195145, 198922, 390290, 397844, 497305, 780580, 994610, 1989220, 3083291, 6166582, 12333164, 15416455, 30832910, 61665820]

約数ペア:

[(1, 61665820), (2, 30832910), (4, 15416455), (5, 12333164), (10, 6166582), (20, 3083291), (31, 1989220), (62, 994610), (79, 780580), (124, 497305), (155, 397844), (158, 390290), (310, 198922), (316, 195145), (395, 156116), (620, 99461), (790, 78058), (1259, 48980), (1580, 39029), (2449, 25180), (2518, 24490), (4898, 12590), (5036, 12245), (6295, 9796)]