19857720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1303}}^1$

素因数の和:1444

約数の個数: 64

約数和(自身を含む): 60088320

約数和(自身を除く): 40230600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 127, 254, 381, 508, 635, 762, 1016, 1270, 1303, 1524, 1905, 2540, 2606, 3048, 3810, 3909, 5080, 5212, 6515, 7620, 7818, 10424, 13030, 15240, 15636, 19545, 26060, 31272, 39090, 52120, 78180, 156360, 165481, 330962, 496443, 661924, 827405, 992886, 1323848, 1654810, 1985772, 2482215, 3309620, 3971544, 4964430, 6619240, 9928860, 19857720]

約数ペア:

[(1, 19857720), (2, 9928860), (3, 6619240), (4, 4964430), (5, 3971544), (6, 3309620), (8, 2482215), (10, 1985772), (12, 1654810), (15, 1323848), (20, 992886), (24, 827405), (30, 661924), (40, 496443), (60, 330962), (120, 165481), (127, 156360), (254, 78180), (381, 52120), (508, 39090), (635, 31272), (762, 26060), (1016, 19545), (1270, 15636), (1303, 15240), (1524, 13030), (1905, 10424), (2540, 7818), (2606, 7620), (3048, 6515), (3810, 5212), (3909, 5080)]