31140525

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2$

素因数の和:127

約数の個数: 72

約数和(自身を含む): 59822560

約数和(自身を除く): 28682035

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 41, 57, 65, 75, 95, 123, 195, 205, 247, 285, 325, 475, 533, 615, 741, 779, 975, 1025, 1235, 1425, 1599, 1681, 2337, 2665, 3075, 3705, 3895, 5043, 6175, 7995, 8405, 10127, 11685, 13325, 18525, 19475, 21853, 25215, 30381, 31939, 39975, 42025, 50635, 58425, 65559, 95817, 109265, 126075, 151905, 159695, 253175, 327795, 415207, 479085, 546325, 759525, 798475, 1245621, 1638975, 2076035, 2395425, 6228105, 10380175, 31140525]

約数ペア:

[(1, 31140525), (3, 10380175), (5, 6228105), (13, 2395425), (15, 2076035), (19, 1638975), (25, 1245621), (39, 798475), (41, 759525), (57, 546325), (65, 479085), (75, 415207), (95, 327795), (123, 253175), (195, 159695), (205, 151905), (247, 126075), (285, 109265), (325, 95817), (475, 65559), (533, 58425), (615, 50635), (741, 42025), (779, 39975), (975, 31939), (1025, 30381), (1235, 25215), (1425, 21853), (1599, 19475), (1681, 18525), (2337, 13325), (2665, 11685), (3075, 10127), (3705, 8405), (3895, 7995), (5043, 6175)]