345420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 1113840

約数和(自身を除く): 768420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 101, 114, 171, 180, 190, 202, 228, 285, 303, 342, 380, 404, 505, 570, 606, 684, 855, 909, 1010, 1140, 1212, 1515, 1710, 1818, 1919, 2020, 3030, 3420, 3636, 3838, 4545, 5757, 6060, 7676, 9090, 9595, 11514, 17271, 18180, 19190, 23028, 28785, 34542, 38380, 57570, 69084, 86355, 115140, 172710, 345420]

約数ペア:

[(1, 345420), (2, 172710), (3, 115140), (4, 86355), (5, 69084), (6, 57570), (9, 38380), (10, 34542), (12, 28785), (15, 23028), (18, 19190), (19, 18180), (20, 17271), (30, 11514), (36, 9595), (38, 9090), (45, 7676), (57, 6060), (60, 5757), (76, 4545), (90, 3838), (95, 3636), (101, 3420), (114, 3030), (171, 2020), (180, 1919), (190, 1818), (202, 1710), (228, 1515), (285, 1212), (303, 1140), (342, 1010), (380, 909), (404, 855), (505, 684), (570, 606)]