51317460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2081}}^1$

素因数の和:2233

約数の個数: 72

約数和(自身を含む): 156874536

約数和(自身を除く): 105557076

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 137, 180, 274, 411, 548, 685, 822, 1233, 1370, 1644, 2055, 2081, 2466, 2740, 4110, 4162, 4932, 6165, 6243, 8220, 8324, 10405, 12330, 12486, 18729, 20810, 24660, 24972, 31215, 37458, 41620, 62430, 74916, 93645, 124860, 187290, 285097, 374580, 570194, 855291, 1140388, 1425485, 1710582, 2565873, 2850970, 3421164, 4276455, 5131746, 5701940, 8552910, 10263492, 12829365, 17105820, 25658730, 51317460]

約数ペア:

[(1, 51317460), (2, 25658730), (3, 17105820), (4, 12829365), (5, 10263492), (6, 8552910), (9, 5701940), (10, 5131746), (12, 4276455), (15, 3421164), (18, 2850970), (20, 2565873), (30, 1710582), (36, 1425485), (45, 1140388), (60, 855291), (90, 570194), (137, 374580), (180, 285097), (274, 187290), (411, 124860), (548, 93645), (685, 74916), (822, 62430), (1233, 41620), (1370, 37458), (1644, 31215), (2055, 24972), (2081, 24660), (2466, 20810), (2740, 18729), (4110, 12486), (4162, 12330), (4932, 10405), (6165, 8324), (6243, 8220)]