279870640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7039}}^1$

素因数の和:7130

約数の個数: 80

約数和(自身を含む): 754237440

約数和(自身を除く): 474366800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1988, 2485, 2840, 3976, 4970, 5680, 7039, 7952, 9940, 14078, 19880, 28156, 35195, 39760, 49273, 56312, 70390, 98546, 112624, 140780, 197092, 246365, 281560, 394184, 492730, 499769, 563120, 788368, 985460, 999538, 1970920, 1999076, 2498845, 3498383, 3941840, 3998152, 4997690, 6996766, 7996304, 9995380, 13993532, 17491915, 19990760, 27987064, 34983830, 39981520, 55974128, 69967660, 139935320, 279870640]

約数ペア:

[(1, 279870640), (2, 139935320), (4, 69967660), (5, 55974128), (7, 39981520), (8, 34983830), (10, 27987064), (14, 19990760), (16, 17491915), (20, 13993532), (28, 9995380), (35, 7996304), (40, 6996766), (56, 4997690), (70, 3998152), (71, 3941840), (80, 3498383), (112, 2498845), (140, 1999076), (142, 1970920), (280, 999538), (284, 985460), (355, 788368), (497, 563120), (560, 499769), (568, 492730), (710, 394184), (994, 281560), (1136, 246365), (1420, 197092), (1988, 140780), (2485, 112624), (2840, 98546), (3976, 70390), (4970, 56312), (5680, 49273), (7039, 39760), (7952, 35195), (9940, 28156), (14078, 19880)]