25457480

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 59754240

約数和(自身を除く): 34296760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 103, 148, 167, 185, 206, 296, 334, 370, 412, 515, 668, 740, 824, 835, 1030, 1336, 1480, 1670, 2060, 3340, 3811, 4120, 6179, 6680, 7622, 12358, 15244, 17201, 19055, 24716, 30488, 30895, 34402, 38110, 49432, 61790, 68804, 76220, 86005, 123580, 137608, 152440, 172010, 247160, 344020, 636437, 688040, 1272874, 2545748, 3182185, 5091496, 6364370, 12728740, 25457480]

約数ペア:

[(1, 25457480), (2, 12728740), (4, 6364370), (5, 5091496), (8, 3182185), (10, 2545748), (20, 1272874), (37, 688040), (40, 636437), (74, 344020), (103, 247160), (148, 172010), (167, 152440), (185, 137608), (206, 123580), (296, 86005), (334, 76220), (370, 68804), (412, 61790), (515, 49432), (668, 38110), (740, 34402), (824, 30895), (835, 30488), (1030, 24716), (1336, 19055), (1480, 17201), (1670, 15244), (2060, 12358), (3340, 7622), (3811, 6680), (4120, 6179)]