78972400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15187}}^1$

素因数の和:15218

約数の個数: 60

約数和(自身を含む): 204339352

約数和(自身を除く): 125366952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 15187, 30374, 60748, 75935, 121496, 151870, 197431, 242992, 303740, 379675, 394862, 607480, 759350, 789724, 987155, 1214960, 1518700, 1579448, 1974310, 3037400, 3158896, 3948620, 4935775, 6074800, 7897240, 9871550, 15794480, 19743100, 39486200, 78972400]

約数ペア:

[(1, 78972400), (2, 39486200), (4, 19743100), (5, 15794480), (8, 9871550), (10, 7897240), (13, 6074800), (16, 4935775), (20, 3948620), (25, 3158896), (26, 3037400), (40, 1974310), (50, 1579448), (52, 1518700), (65, 1214960), (80, 987155), (100, 789724), (104, 759350), (130, 607480), (200, 394862), (208, 379675), (260, 303740), (325, 242992), (400, 197431), (520, 151870), (650, 121496), (1040, 75935), (1300, 60748), (2600, 30374), (5200, 15187)]