31119320

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 73332000

約数和(自身を除く): 42212680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 139, 145, 193, 232, 278, 290, 386, 556, 580, 695, 772, 965, 1112, 1160, 1390, 1544, 1930, 2780, 3860, 4031, 5560, 5597, 7720, 8062, 11194, 16124, 20155, 22388, 26827, 27985, 32248, 40310, 44776, 53654, 55970, 80620, 107308, 111940, 134135, 161240, 214616, 223880, 268270, 536540, 777983, 1073080, 1555966, 3111932, 3889915, 6223864, 7779830, 15559660, 31119320]

約数ペア:

[(1, 31119320), (2, 15559660), (4, 7779830), (5, 6223864), (8, 3889915), (10, 3111932), (20, 1555966), (29, 1073080), (40, 777983), (58, 536540), (116, 268270), (139, 223880), (145, 214616), (193, 161240), (232, 134135), (278, 111940), (290, 107308), (386, 80620), (556, 55970), (580, 53654), (695, 44776), (772, 40310), (965, 32248), (1112, 27985), (1160, 26827), (1390, 22388), (1544, 20155), (1930, 16124), (2780, 11194), (3860, 8062), (4031, 7720), (5560, 5597)]