12914920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 30355200

約数和(自身を除く): 17440280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 67, 79, 122, 134, 158, 244, 268, 305, 316, 335, 395, 488, 536, 610, 632, 670, 790, 1220, 1340, 1580, 2440, 2680, 3160, 4087, 4819, 5293, 8174, 9638, 10586, 16348, 19276, 20435, 21172, 24095, 26465, 32696, 38552, 40870, 42344, 48190, 52930, 81740, 96380, 105860, 163480, 192760, 211720, 322873, 645746, 1291492, 1614365, 2582984, 3228730, 6457460, 12914920]

約数ペア:

[(1, 12914920), (2, 6457460), (4, 3228730), (5, 2582984), (8, 1614365), (10, 1291492), (20, 645746), (40, 322873), (61, 211720), (67, 192760), (79, 163480), (122, 105860), (134, 96380), (158, 81740), (244, 52930), (268, 48190), (305, 42344), (316, 40870), (335, 38552), (395, 32696), (488, 26465), (536, 24095), (610, 21172), (632, 20435), (670, 19276), (790, 16348), (1220, 10586), (1340, 9638), (1580, 8174), (2440, 5293), (2680, 4819), (3160, 4087)]