28553784

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{487}}^1$

素因数の和:852

約数の個数: 64

約数和(自身を含む): 81984000

約数和(自身を除く): 53430216

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 349, 487, 698, 974, 1047, 1396, 1461, 1948, 2094, 2443, 2792, 2922, 3409, 3896, 4188, 4886, 5844, 6818, 7329, 8376, 9772, 10227, 11688, 13636, 14658, 19544, 20454, 27272, 29316, 40908, 58632, 81816, 169963, 339926, 509889, 679852, 1019778, 1189741, 1359704, 2039556, 2379482, 3569223, 4079112, 4758964, 7138446, 9517928, 14276892, 28553784]

約数ペア:

[(1, 28553784), (2, 14276892), (3, 9517928), (4, 7138446), (6, 4758964), (7, 4079112), (8, 3569223), (12, 2379482), (14, 2039556), (21, 1359704), (24, 1189741), (28, 1019778), (42, 679852), (56, 509889), (84, 339926), (168, 169963), (349, 81816), (487, 58632), (698, 40908), (974, 29316), (1047, 27272), (1396, 20454), (1461, 19544), (1948, 14658), (2094, 13636), (2443, 11688), (2792, 10227), (2922, 9772), (3409, 8376), (3896, 7329), (4188, 6818), (4886, 5844)]