20182155

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 39426048

約数和(自身を除く): 19243893

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 61, 69, 105, 115, 137, 161, 183, 305, 345, 411, 427, 483, 685, 805, 915, 959, 1281, 1403, 2055, 2135, 2415, 2877, 3151, 4209, 4795, 6405, 7015, 8357, 9453, 9821, 14385, 15755, 21045, 22057, 25071, 29463, 41785, 47265, 49105, 58499, 66171, 110285, 125355, 147315, 175497, 192211, 292495, 330855, 576633, 877485, 961055, 1345477, 2883165, 4036431, 6727385, 20182155]

約数ペア:

[(1, 20182155), (3, 6727385), (5, 4036431), (7, 2883165), (15, 1345477), (21, 961055), (23, 877485), (35, 576633), (61, 330855), (69, 292495), (105, 192211), (115, 175497), (137, 147315), (161, 125355), (183, 110285), (305, 66171), (345, 58499), (411, 49105), (427, 47265), (483, 41785), (685, 29463), (805, 25071), (915, 22057), (959, 21045), (1281, 15755), (1403, 14385), (2055, 9821), (2135, 9453), (2415, 8357), (2877, 7015), (3151, 6405), (4209, 4795)]