20733580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 53415936

約数和(自身を除く): 32682356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 47, 70, 92, 94, 115, 137, 140, 161, 188, 230, 235, 274, 322, 329, 460, 470, 548, 644, 658, 685, 805, 940, 959, 1081, 1316, 1370, 1610, 1645, 1918, 2162, 2740, 3151, 3220, 3290, 3836, 4324, 4795, 5405, 6302, 6439, 6580, 7567, 9590, 10810, 12604, 12878, 15134, 15755, 19180, 21620, 22057, 25756, 30268, 31510, 32195, 37835, 44114, 45073, 63020, 64390, 75670, 88228, 90146, 110285, 128780, 148097, 151340, 180292, 220570, 225365, 296194, 441140, 450730, 592388, 740485, 901460, 1036679, 1480970, 2073358, 2961940, 4146716, 5183395, 10366790, 20733580]

約数ペア:

[(1, 20733580), (2, 10366790), (4, 5183395), (5, 4146716), (7, 2961940), (10, 2073358), (14, 1480970), (20, 1036679), (23, 901460), (28, 740485), (35, 592388), (46, 450730), (47, 441140), (70, 296194), (92, 225365), (94, 220570), (115, 180292), (137, 151340), (140, 148097), (161, 128780), (188, 110285), (230, 90146), (235, 88228), (274, 75670), (322, 64390), (329, 63020), (460, 45073), (470, 44114), (548, 37835), (644, 32195), (658, 31510), (685, 30268), (805, 25756), (940, 22057), (959, 21620), (1081, 19180), (1316, 15755), (1370, 15134), (1610, 12878), (1645, 12604), (1918, 10810), (2162, 9590), (2740, 7567), (3151, 6580), (3220, 6439), (3290, 6302), (3836, 5405), (4324, 4795)]