25821280

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2273}}^1$

素因数の和:2359

約数の個数: 48

約数和(自身を含む): 61889184

約数和(自身を除く): 36067904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2273, 2840, 4546, 5680, 9092, 11360, 11365, 18184, 22730, 36368, 45460, 72736, 90920, 161383, 181840, 322766, 363680, 645532, 806915, 1291064, 1613830, 2582128, 3227660, 5164256, 6455320, 12910640, 25821280]

約数ペア:

[(1, 25821280), (2, 12910640), (4, 6455320), (5, 5164256), (8, 3227660), (10, 2582128), (16, 1613830), (20, 1291064), (32, 806915), (40, 645532), (71, 363680), (80, 322766), (142, 181840), (160, 161383), (284, 90920), (355, 72736), (568, 45460), (710, 36368), (1136, 22730), (1420, 18184), (2272, 11365), (2273, 11360), (2840, 9092), (4546, 5680)]