8400140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2069}}^1$

素因数の和:2114

約数の個数: 48

約数和(自身を含む): 20865600

約数和(自身を除く): 12465460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 2069, 4060, 4138, 8276, 10345, 14483, 20690, 28966, 41380, 57932, 60001, 72415, 120002, 144830, 240004, 289660, 300005, 420007, 600010, 840014, 1200020, 1680028, 2100035, 4200070, 8400140]

約数ペア:

[(1, 8400140), (2, 4200070), (4, 2100035), (5, 1680028), (7, 1200020), (10, 840014), (14, 600010), (20, 420007), (28, 300005), (29, 289660), (35, 240004), (58, 144830), (70, 120002), (116, 72415), (140, 60001), (145, 57932), (203, 41380), (290, 28966), (406, 20690), (580, 14483), (812, 10345), (1015, 8276), (2030, 4138), (2069, 4060)]