18327820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:191

約数の個数: 96

約数和(自身を含む): 46964736

約数和(自身を除く): 28636916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 41, 62, 70, 82, 103, 124, 140, 155, 164, 205, 206, 217, 287, 310, 410, 412, 434, 515, 574, 620, 721, 820, 868, 1030, 1085, 1148, 1271, 1435, 1442, 2060, 2170, 2542, 2870, 2884, 3193, 3605, 4223, 4340, 5084, 5740, 6355, 6386, 7210, 8446, 8897, 12710, 12772, 14420, 15965, 16892, 17794, 21115, 22351, 25420, 29561, 31930, 35588, 42230, 44485, 44702, 59122, 63860, 84460, 88970, 89404, 111755, 118244, 130913, 147805, 177940, 223510, 261826, 295610, 447020, 523652, 591220, 654565, 916391, 1309130, 1832782, 2618260, 3665564, 4581955, 9163910, 18327820]

約数ペア:

[(1, 18327820), (2, 9163910), (4, 4581955), (5, 3665564), (7, 2618260), (10, 1832782), (14, 1309130), (20, 916391), (28, 654565), (31, 591220), (35, 523652), (41, 447020), (62, 295610), (70, 261826), (82, 223510), (103, 177940), (124, 147805), (140, 130913), (155, 118244), (164, 111755), (205, 89404), (206, 88970), (217, 84460), (287, 63860), (310, 59122), (410, 44702), (412, 44485), (434, 42230), (515, 35588), (574, 31930), (620, 29561), (721, 25420), (820, 22351), (868, 21115), (1030, 17794), (1085, 16892), (1148, 15965), (1271, 14420), (1435, 12772), (1442, 12710), (2060, 8897), (2170, 8446), (2542, 7210), (2870, 6386), (2884, 6355), (3193, 5740), (3605, 5084), (4223, 4340)]