25459420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:419

約数の個数: 72

約数和(自身を含む): 63144144

約数和(自身を除く): 37684724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 83, 98, 140, 166, 196, 245, 313, 332, 415, 490, 581, 626, 830, 980, 1162, 1252, 1565, 1660, 2191, 2324, 2905, 3130, 4067, 4382, 5810, 6260, 8134, 8764, 10955, 11620, 15337, 16268, 20335, 21910, 25979, 30674, 40670, 43820, 51958, 61348, 76685, 81340, 103916, 129895, 153370, 181853, 259790, 306740, 363706, 519580, 727412, 909265, 1272971, 1818530, 2545942, 3637060, 5091884, 6364855, 12729710, 25459420]

約数ペア:

[(1, 25459420), (2, 12729710), (4, 6364855), (5, 5091884), (7, 3637060), (10, 2545942), (14, 1818530), (20, 1272971), (28, 909265), (35, 727412), (49, 519580), (70, 363706), (83, 306740), (98, 259790), (140, 181853), (166, 153370), (196, 129895), (245, 103916), (313, 81340), (332, 76685), (415, 61348), (490, 51958), (581, 43820), (626, 40670), (830, 30674), (980, 25979), (1162, 21910), (1252, 20335), (1565, 16268), (1660, 15337), (2191, 11620), (2324, 10955), (2905, 8764), (3130, 8134), (4067, 6260), (4382, 5810)]