81930900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{3457}}^1$

素因数の和:3553

約数の個数: 72

約数和(自身を含む): 240123520

約数和(自身を除く): 158192620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 79, 100, 150, 158, 237, 300, 316, 395, 474, 790, 948, 1185, 1580, 1975, 2370, 3457, 3950, 4740, 5925, 6914, 7900, 10371, 11850, 13828, 17285, 20742, 23700, 34570, 41484, 51855, 69140, 86425, 103710, 172850, 207420, 259275, 273103, 345700, 518550, 546206, 819309, 1037100, 1092412, 1365515, 1638618, 2731030, 3277236, 4096545, 5462060, 6827575, 8193090, 13655150, 16386180, 20482725, 27310300, 40965450, 81930900]

約数ペア:

[(1, 81930900), (2, 40965450), (3, 27310300), (4, 20482725), (5, 16386180), (6, 13655150), (10, 8193090), (12, 6827575), (15, 5462060), (20, 4096545), (25, 3277236), (30, 2731030), (50, 1638618), (60, 1365515), (75, 1092412), (79, 1037100), (100, 819309), (150, 546206), (158, 518550), (237, 345700), (300, 273103), (316, 259275), (395, 207420), (474, 172850), (790, 103710), (948, 86425), (1185, 69140), (1580, 51855), (1975, 41484), (2370, 34570), (3457, 23700), (3950, 20742), (4740, 17285), (5925, 13828), (6914, 11850), (7900, 10371)]