128181928

素因数分解:

$2^3\times 7^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 281128320

約数和(自身を除く): 152946392

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 101, 131, 173, 202, 262, 346, 404, 524, 692, 707, 808, 917, 1048, 1211, 1384, 1414, 1834, 2422, 2828, 3668, 4844, 5656, 7336, 9688, 13231, 17473, 22663, 26462, 34946, 45326, 52924, 69892, 90652, 92617, 105848, 122311, 139784, 158641, 181304, 185234, 244622, 317282, 370468, 489244, 634564, 740936, 978488, 1269128, 2288963, 4577926, 9155852, 16022741, 18311704, 32045482, 64090964, 128181928]

約数ペア:

[(1, 128181928), (2, 64090964), (4, 32045482), (7, 18311704), (8, 16022741), (14, 9155852), (28, 4577926), (56, 2288963), (101, 1269128), (131, 978488), (173, 740936), (202, 634564), (262, 489244), (346, 370468), (404, 317282), (524, 244622), (692, 185234), (707, 181304), (808, 158641), (917, 139784), (1048, 122311), (1211, 105848), (1384, 92617), (1414, 90652), (1834, 69892), (2422, 52924), (2828, 45326), (3668, 34946), (4844, 26462), (5656, 22663), (7336, 17473), (9688, 13231)]