165739240

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{61843}}^1$

素因数の和:61921

約数の個数: 32

約数和(自身を含む): 378485280

約数和(自身を除く): 212746040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 61843, 123686, 247372, 309215, 494744, 618430, 1236860, 2473720, 4143481, 8286962, 16573924, 20717405, 33147848, 41434810, 82869620, 165739240]

約数ペア:

[(1, 165739240), (2, 82869620), (4, 41434810), (5, 33147848), (8, 20717405), (10, 16573924), (20, 8286962), (40, 4143481), (67, 2473720), (134, 1236860), (268, 618430), (335, 494744), (536, 309215), (670, 247372), (1340, 123686), (2680, 61843)]