18060520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 43182720

約数和(自身を除く): 25122200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 67, 92, 115, 134, 184, 230, 268, 293, 335, 460, 536, 586, 670, 920, 1172, 1340, 1465, 1541, 2344, 2680, 2930, 3082, 5860, 6164, 6739, 7705, 11720, 12328, 13478, 15410, 19631, 26956, 30820, 33695, 39262, 53912, 61640, 67390, 78524, 98155, 134780, 157048, 196310, 269560, 392620, 451513, 785240, 903026, 1806052, 2257565, 3612104, 4515130, 9030260, 18060520]

約数ペア:

[(1, 18060520), (2, 9030260), (4, 4515130), (5, 3612104), (8, 2257565), (10, 1806052), (20, 903026), (23, 785240), (40, 451513), (46, 392620), (67, 269560), (92, 196310), (115, 157048), (134, 134780), (184, 98155), (230, 78524), (268, 67390), (293, 61640), (335, 53912), (460, 39262), (536, 33695), (586, 30820), (670, 26956), (920, 19631), (1172, 15410), (1340, 13478), (1465, 12328), (1541, 11720), (2344, 7705), (2680, 6739), (2930, 6164), (3082, 5860)]