25374895

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 39529728

約数和(自身を除く): 14154833

約数列:

[1, 5, 7, 13, 31, 35, 49, 65, 91, 155, 217, 245, 257, 403, 455, 637, 1085, 1285, 1519, 1799, 2015, 2821, 3185, 3341, 7595, 7967, 8995, 12593, 14105, 16705, 19747, 23387, 39835, 55769, 62965, 98735, 103571, 116935, 163709, 278845, 390383, 517855, 724997, 818545, 1951915, 3624985, 5074979, 25374895]

約数ペア:

[(1, 25374895), (5, 5074979), (7, 3624985), (13, 1951915), (31, 818545), (35, 724997), (49, 517855), (65, 390383), (91, 278845), (155, 163709), (217, 116935), (245, 103571), (257, 98735), (403, 62965), (455, 55769), (637, 39835), (1085, 23387), (1285, 19747), (1519, 16705), (1799, 14105), (2015, 12593), (2821, 8995), (3185, 7967), (3341, 7595)]