18775250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 38918880

約数和(自身を除く): 20143630

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 53, 65, 106, 109, 125, 130, 218, 250, 265, 325, 530, 545, 650, 689, 1090, 1325, 1378, 1417, 1625, 2650, 2725, 2834, 3250, 3445, 5450, 5777, 6625, 6890, 7085, 11554, 13250, 13625, 14170, 17225, 27250, 28885, 34450, 35425, 57770, 70850, 75101, 86125, 144425, 150202, 172250, 177125, 288850, 354250, 375505, 722125, 751010, 1444250, 1877525, 3755050, 9387625, 18775250]

約数ペア:

[(1, 18775250), (2, 9387625), (5, 3755050), (10, 1877525), (13, 1444250), (25, 751010), (26, 722125), (50, 375505), (53, 354250), (65, 288850), (106, 177125), (109, 172250), (125, 150202), (130, 144425), (218, 86125), (250, 75101), (265, 70850), (325, 57770), (530, 35425), (545, 34450), (650, 28885), (689, 27250), (1090, 17225), (1325, 14170), (1378, 13625), (1417, 13250), (1625, 11554), (2650, 7085), (2725, 6890), (2834, 6625), (3250, 5777), (3445, 5450)]