2745405

素因数分解:

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

素因数の和:75

約数の個数: 54

約数和(自身を含む): 5438394

約数和(自身を除く): 2692989

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 169, 171, 195, 247, 285, 361, 507, 585, 741, 845, 855, 1083, 1235, 1521, 1805, 2223, 2535, 3211, 3249, 3705, 4693, 5415, 7605, 9633, 11115, 14079, 16055, 16245, 23465, 28899, 42237, 48165, 61009, 70395, 144495, 183027, 211185, 305045, 549081, 915135, 2745405]

約数ペア:

[(1, 2745405), (3, 915135), (5, 549081), (9, 305045), (13, 211185), (15, 183027), (19, 144495), (39, 70395), (45, 61009), (57, 48165), (65, 42237), (95, 28899), (117, 23465), (169, 16245), (171, 16055), (195, 14079), (247, 11115), (285, 9633), (361, 7605), (507, 5415), (585, 4693), (741, 3705), (845, 3249), (855, 3211), (1083, 2535), (1235, 2223), (1521, 1805)]