12999340

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 28274400

約数和(自身を除く): 15275060

約数列:

[1, 2, 4, 5, 10, 20, 67, 89, 109, 134, 178, 218, 268, 335, 356, 436, 445, 545, 670, 890, 1090, 1340, 1780, 2180, 5963, 7303, 9701, 11926, 14606, 19402, 23852, 29212, 29815, 36515, 38804, 48505, 59630, 73030, 97010, 119260, 146060, 194020, 649967, 1299934, 2599868, 3249835, 6499670, 12999340]

約数ペア:

[(1, 12999340), (2, 6499670), (4, 3249835), (5, 2599868), (10, 1299934), (20, 649967), (67, 194020), (89, 146060), (109, 119260), (134, 97010), (178, 73030), (218, 59630), (268, 48505), (335, 38804), (356, 36515), (436, 29815), (445, 29212), (545, 23852), (670, 19402), (890, 14606), (1090, 11926), (1340, 9701), (1780, 7303), (2180, 5963)]