128613816

素因数分解:

$2^3\times 3^2\times {\mathrm{421}}^1\times {\mathrm{4243}}^1$

素因数の和:4676

約数の個数: 48

約数和(自身を含む): 349238760

約数和(自身を除く): 220624944

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 421, 842, 1263, 1684, 2526, 3368, 3789, 4243, 5052, 7578, 8486, 10104, 12729, 15156, 16972, 25458, 30312, 33944, 38187, 50916, 76374, 101832, 152748, 305496, 1786303, 3572606, 5358909, 7145212, 10717818, 14290424, 16076727, 21435636, 32153454, 42871272, 64306908, 128613816]

約数ペア:

[(1, 128613816), (2, 64306908), (3, 42871272), (4, 32153454), (6, 21435636), (8, 16076727), (9, 14290424), (12, 10717818), (18, 7145212), (24, 5358909), (36, 3572606), (72, 1786303), (421, 305496), (842, 152748), (1263, 101832), (1684, 76374), (2526, 50916), (3368, 38187), (3789, 33944), (4243, 30312), (5052, 25458), (7578, 16972), (8486, 15156), (10104, 12729)]