3988880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1$

素因数の和:456

約数の個数: 80

約数和(自身を含む): 11249280

約数和(自身を除く): 7260400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 419, 476, 560, 595, 680, 838, 952, 1190, 1360, 1676, 1904, 2095, 2380, 2933, 3352, 4190, 4760, 5866, 6704, 7123, 8380, 9520, 11732, 14246, 14665, 16760, 23464, 28492, 29330, 33520, 35615, 46928, 49861, 56984, 58660, 71230, 99722, 113968, 117320, 142460, 199444, 234640, 249305, 284920, 398888, 498610, 569840, 797776, 997220, 1994440, 3988880]

約数ペア:

[(1, 3988880), (2, 1994440), (4, 997220), (5, 797776), (7, 569840), (8, 498610), (10, 398888), (14, 284920), (16, 249305), (17, 234640), (20, 199444), (28, 142460), (34, 117320), (35, 113968), (40, 99722), (56, 71230), (68, 58660), (70, 56984), (80, 49861), (85, 46928), (112, 35615), (119, 33520), (136, 29330), (140, 28492), (170, 23464), (238, 16760), (272, 14665), (280, 14246), (340, 11732), (419, 9520), (476, 8380), (560, 7123), (595, 6704), (680, 5866), (838, 4760), (952, 4190), (1190, 3352), (1360, 2933), (1676, 2380), (1904, 2095)]