51380820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2179}}^1$

素因数の和:2325

約数の個数: 72

約数和(自身を含む): 157116960

約数和(自身を除く): 105736140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 1179, 1310, 1572, 1965, 2179, 2358, 2620, 3930, 4358, 4716, 5895, 6537, 7860, 8716, 10895, 11790, 13074, 19611, 21790, 23580, 26148, 32685, 39222, 43580, 65370, 78444, 98055, 130740, 196110, 285449, 392220, 570898, 856347, 1141796, 1427245, 1712694, 2569041, 2854490, 3425388, 4281735, 5138082, 5708980, 8563470, 10276164, 12845205, 17126940, 25690410, 51380820]

約数ペア:

[(1, 51380820), (2, 25690410), (3, 17126940), (4, 12845205), (5, 10276164), (6, 8563470), (9, 5708980), (10, 5138082), (12, 4281735), (15, 3425388), (18, 2854490), (20, 2569041), (30, 1712694), (36, 1427245), (45, 1141796), (60, 856347), (90, 570898), (131, 392220), (180, 285449), (262, 196110), (393, 130740), (524, 98055), (655, 78444), (786, 65370), (1179, 43580), (1310, 39222), (1572, 32685), (1965, 26148), (2179, 23580), (2358, 21790), (2620, 19611), (3930, 13074), (4358, 11790), (4716, 10895), (5895, 8716), (6537, 7860)]