81119740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16421}}^1$

素因数の和:16462

約数の個数: 48

約数和(自身を含む): 193122720

約数和(自身を除く): 112002980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 16421, 32842, 65684, 82105, 164210, 213473, 311999, 328420, 426946, 623998, 853892, 1067365, 1247996, 1559995, 2134730, 3119990, 4055987, 4269460, 6239980, 8111974, 16223948, 20279935, 40559870, 81119740]

約数ペア:

[(1, 81119740), (2, 40559870), (4, 20279935), (5, 16223948), (10, 8111974), (13, 6239980), (19, 4269460), (20, 4055987), (26, 3119990), (38, 2134730), (52, 1559995), (65, 1247996), (76, 1067365), (95, 853892), (130, 623998), (190, 426946), (247, 328420), (260, 311999), (380, 213473), (494, 164210), (988, 82105), (1235, 65684), (2470, 32842), (4940, 16421)]