1262820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1619}}^1$

素因数の和:1644

約数の個数: 48

約数和(自身を含む): 3810240

約数和(自身を除く): 2547420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 1619, 3238, 4857, 6476, 8095, 9714, 16190, 19428, 21047, 24285, 32380, 42094, 48570, 63141, 84188, 97140, 105235, 126282, 210470, 252564, 315705, 420940, 631410, 1262820]

約数ペア:

[(1, 1262820), (2, 631410), (3, 420940), (4, 315705), (5, 252564), (6, 210470), (10, 126282), (12, 105235), (13, 97140), (15, 84188), (20, 63141), (26, 48570), (30, 42094), (39, 32380), (52, 24285), (60, 21047), (65, 19428), (78, 16190), (130, 9714), (156, 8095), (195, 6476), (260, 4857), (390, 3238), (780, 1619)]