128486428

素因数分解:

$2^2\times 7^3\times {\mathrm{71}}^1\times {\mathrm{1319}}^1$

素因数の和:1415

約数の個数: 48

約数和(自身を含む): 266112000

約数和(自身を除く): 137625572

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 142, 196, 284, 343, 497, 686, 994, 1319, 1372, 1988, 2638, 3479, 5276, 6958, 9233, 13916, 18466, 24353, 36932, 48706, 64631, 93649, 97412, 129262, 187298, 258524, 374596, 452417, 655543, 904834, 1311086, 1809668, 2622172, 4588801, 9177602, 18355204, 32121607, 64243214, 128486428]

約数ペア:

[(1, 128486428), (2, 64243214), (4, 32121607), (7, 18355204), (14, 9177602), (28, 4588801), (49, 2622172), (71, 1809668), (98, 1311086), (142, 904834), (196, 655543), (284, 452417), (343, 374596), (497, 258524), (686, 187298), (994, 129262), (1319, 97412), (1372, 93649), (1988, 64631), (2638, 48706), (3479, 36932), (5276, 24353), (6958, 18466), (9233, 13916)]