19904190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{2753}}^1$

素因数の和:3004

約数の個数: 32

約数和(自身を含む): 47985696

約数和(自身を除く): 28081506

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 241, 482, 723, 1205, 1446, 2410, 2753, 3615, 5506, 7230, 8259, 13765, 16518, 27530, 41295, 82590, 663473, 1326946, 1990419, 3317365, 3980838, 6634730, 9952095, 19904190]

約数ペア:

[(1, 19904190), (2, 9952095), (3, 6634730), (5, 3980838), (6, 3317365), (10, 1990419), (15, 1326946), (30, 663473), (241, 82590), (482, 41295), (723, 27530), (1205, 16518), (1446, 13765), (2410, 8259), (2753, 7230), (3615, 5506)]