7215440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:180

約数の個数: 80

約数和(自身を含む): 18213120

約数和(自身を除く): 10997680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 47, 76, 80, 94, 95, 101, 152, 188, 190, 202, 235, 304, 376, 380, 404, 470, 505, 752, 760, 808, 893, 940, 1010, 1520, 1616, 1786, 1880, 1919, 2020, 3572, 3760, 3838, 4040, 4465, 4747, 7144, 7676, 8080, 8930, 9494, 9595, 14288, 15352, 17860, 18988, 19190, 23735, 30704, 35720, 37976, 38380, 47470, 71440, 75952, 76760, 90193, 94940, 153520, 180386, 189880, 360772, 379760, 450965, 721544, 901930, 1443088, 1803860, 3607720, 7215440]

約数ペア:

[(1, 7215440), (2, 3607720), (4, 1803860), (5, 1443088), (8, 901930), (10, 721544), (16, 450965), (19, 379760), (20, 360772), (38, 189880), (40, 180386), (47, 153520), (76, 94940), (80, 90193), (94, 76760), (95, 75952), (101, 71440), (152, 47470), (188, 38380), (190, 37976), (202, 35720), (235, 30704), (304, 23735), (376, 19190), (380, 18988), (404, 17860), (470, 15352), (505, 14288), (752, 9595), (760, 9494), (808, 8930), (893, 8080), (940, 7676), (1010, 7144), (1520, 4747), (1616, 4465), (1786, 4040), (1880, 3838), (1919, 3760), (2020, 3572)]