39947025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 74613280

約数和(自身を除く): 34666255

約数列:

[1, 3, 5, 15, 17, 19, 25, 51, 57, 75, 85, 95, 97, 255, 285, 289, 291, 323, 425, 475, 485, 867, 969, 1275, 1425, 1445, 1455, 1615, 1649, 1843, 2425, 4335, 4845, 4947, 5491, 5529, 7225, 7275, 8075, 8245, 9215, 16473, 21675, 24225, 24735, 27455, 27645, 28033, 31331, 41225, 46075, 82365, 84099, 93993, 123675, 137275, 138225, 140165, 156655, 411825, 420495, 469965, 532627, 700825, 783275, 1597881, 2102475, 2349825, 2663135, 7989405, 13315675, 39947025]

約数ペア:

[(1, 39947025), (3, 13315675), (5, 7989405), (15, 2663135), (17, 2349825), (19, 2102475), (25, 1597881), (51, 783275), (57, 700825), (75, 532627), (85, 469965), (95, 420495), (97, 411825), (255, 156655), (285, 140165), (289, 138225), (291, 137275), (323, 123675), (425, 93993), (475, 84099), (485, 82365), (867, 46075), (969, 41225), (1275, 31331), (1425, 28033), (1445, 27645), (1455, 27455), (1615, 24735), (1649, 24225), (1843, 21675), (2425, 16473), (4335, 9215), (4845, 8245), (4947, 8075), (5491, 7275), (5529, 7225)]