25888220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 56349216

約数和(自身を除く): 30460996

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 131, 164, 205, 241, 262, 410, 482, 524, 655, 820, 964, 1205, 1310, 2410, 2620, 4820, 5371, 9881, 10742, 19762, 21484, 26855, 31571, 39524, 49405, 53710, 63142, 98810, 107420, 126284, 157855, 197620, 315710, 631420, 1294411, 2588822, 5177644, 6472055, 12944110, 25888220]

約数ペア:

[(1, 25888220), (2, 12944110), (4, 6472055), (5, 5177644), (10, 2588822), (20, 1294411), (41, 631420), (82, 315710), (131, 197620), (164, 157855), (205, 126284), (241, 107420), (262, 98810), (410, 63142), (482, 53710), (524, 49405), (655, 39524), (820, 31571), (964, 26855), (1205, 21484), (1310, 19762), (2410, 10742), (2620, 9881), (4820, 5371)]