261402080

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{26783}}^1$

素因数の和:26859

約数の個数: 48

約数和(自身を含む): 627709824

約数和(自身を除く): 366307744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2440, 4880, 9760, 26783, 53566, 107132, 133915, 214264, 267830, 428528, 535660, 857056, 1071320, 1633763, 2142640, 3267526, 4285280, 6535052, 8168815, 13070104, 16337630, 26140208, 32675260, 52280416, 65350520, 130701040, 261402080]

約数ペア:

[(1, 261402080), (2, 130701040), (4, 65350520), (5, 52280416), (8, 32675260), (10, 26140208), (16, 16337630), (20, 13070104), (32, 8168815), (40, 6535052), (61, 4285280), (80, 3267526), (122, 2142640), (160, 1633763), (244, 1071320), (305, 857056), (488, 535660), (610, 428528), (976, 267830), (1220, 214264), (1952, 133915), (2440, 107132), (4880, 53566), (9760, 26783)]