991185

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:74

約数の個数: 48

約数和(自身を含む): 1897344

約数和(自身を除く): 906159

約数列:

[1, 3, 5, 13, 15, 17, 23, 39, 51, 65, 69, 85, 115, 169, 195, 221, 255, 299, 345, 391, 507, 663, 845, 897, 1105, 1173, 1495, 1955, 2535, 2873, 3315, 3887, 4485, 5083, 5865, 8619, 11661, 14365, 15249, 19435, 25415, 43095, 58305, 66079, 76245, 198237, 330395, 991185]

約数ペア:

[(1, 991185), (3, 330395), (5, 198237), (13, 76245), (15, 66079), (17, 58305), (23, 43095), (39, 25415), (51, 19435), (65, 15249), (69, 14365), (85, 11661), (115, 8619), (169, 5865), (195, 5083), (221, 4485), (255, 3887), (299, 3315), (345, 2873), (391, 2535), (507, 1955), (663, 1495), (845, 1173), (897, 1105)]