61780980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2647}}^1$

素因数の和:3048

約数の個数: 48

約数和(自身を含む): 173496960

約数和(自身を除く): 111715980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 389, 778, 1167, 1556, 1945, 2334, 2647, 3890, 4668, 5294, 5835, 7780, 7941, 10588, 11670, 13235, 15882, 23340, 26470, 31764, 39705, 52940, 79410, 158820, 1029683, 2059366, 3089049, 4118732, 5148415, 6178098, 10296830, 12356196, 15445245, 20593660, 30890490, 61780980]

約数ペア:

[(1, 61780980), (2, 30890490), (3, 20593660), (4, 15445245), (5, 12356196), (6, 10296830), (10, 6178098), (12, 5148415), (15, 4118732), (20, 3089049), (30, 2059366), (60, 1029683), (389, 158820), (778, 79410), (1167, 52940), (1556, 39705), (1945, 31764), (2334, 26470), (2647, 23340), (3890, 15882), (4668, 13235), (5294, 11670), (5835, 10588), (7780, 7941)]