28818036

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{443}}^1$

素因数の和:605

約数の個数: 72

約数和(自身を含む): 79191840

約数和(自身を除く): 50373804

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 139, 156, 234, 278, 417, 443, 468, 556, 834, 886, 1251, 1329, 1668, 1772, 1807, 2502, 2658, 3614, 3987, 5004, 5316, 5421, 5759, 7228, 7974, 10842, 11518, 15948, 16263, 17277, 21684, 23036, 32526, 34554, 51831, 61577, 65052, 69108, 103662, 123154, 184731, 207324, 246308, 369462, 554193, 738924, 800501, 1108386, 1601002, 2216772, 2401503, 3202004, 4803006, 7204509, 9606012, 14409018, 28818036]

約数ペア:

[(1, 28818036), (2, 14409018), (3, 9606012), (4, 7204509), (6, 4803006), (9, 3202004), (12, 2401503), (13, 2216772), (18, 1601002), (26, 1108386), (36, 800501), (39, 738924), (52, 554193), (78, 369462), (117, 246308), (139, 207324), (156, 184731), (234, 123154), (278, 103662), (417, 69108), (443, 65052), (468, 61577), (556, 51831), (834, 34554), (886, 32526), (1251, 23036), (1329, 21684), (1668, 17277), (1772, 16263), (1807, 15948), (2502, 11518), (2658, 10842), (3614, 7974), (3987, 7228), (5004, 5759), (5316, 5421)]