18756180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1319}}^1$

素因数の和:1413

約数の個数: 72

約数和(自身を含む): 57657600

約数和(自身を除く): 38901420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1319, 1422, 1580, 2370, 2638, 2844, 3555, 3957, 4740, 5276, 6595, 7110, 7914, 11871, 13190, 14220, 15828, 19785, 23742, 26380, 39570, 47484, 59355, 79140, 104201, 118710, 208402, 237420, 312603, 416804, 521005, 625206, 937809, 1042010, 1250412, 1563015, 1875618, 2084020, 3126030, 3751236, 4689045, 6252060, 9378090, 18756180]

約数ペア:

[(1, 18756180), (2, 9378090), (3, 6252060), (4, 4689045), (5, 3751236), (6, 3126030), (9, 2084020), (10, 1875618), (12, 1563015), (15, 1250412), (18, 1042010), (20, 937809), (30, 625206), (36, 521005), (45, 416804), (60, 312603), (79, 237420), (90, 208402), (158, 118710), (180, 104201), (237, 79140), (316, 59355), (395, 47484), (474, 39570), (711, 26380), (790, 23742), (948, 19785), (1185, 15828), (1319, 14220), (1422, 13190), (1580, 11871), (2370, 7914), (2638, 7110), (2844, 6595), (3555, 5276), (3957, 4740)]