31216575

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{317}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 56308896

約数和(自身を除く): 25092321

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 101, 195, 303, 317, 325, 505, 951, 975, 1313, 1515, 1585, 2525, 3939, 4121, 4755, 6565, 7575, 7925, 12363, 19695, 20605, 23775, 32017, 32825, 61815, 96051, 98475, 103025, 160085, 309075, 416221, 480255, 800425, 1248663, 2081105, 2401275, 6243315, 10405525, 31216575]

約数ペア:

[(1, 31216575), (3, 10405525), (5, 6243315), (13, 2401275), (15, 2081105), (25, 1248663), (39, 800425), (65, 480255), (75, 416221), (101, 309075), (195, 160085), (303, 103025), (317, 98475), (325, 96051), (505, 61815), (951, 32825), (975, 32017), (1313, 23775), (1515, 20605), (1585, 19695), (2525, 12363), (3939, 7925), (4121, 7575), (4755, 6565)]