18500925

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 32230080

約数和(自身を除く): 13729155

約数列:

[1, 3, 5, 15, 25, 37, 59, 75, 111, 113, 177, 185, 295, 339, 555, 565, 885, 925, 1475, 1695, 2183, 2775, 2825, 4181, 4425, 6549, 6667, 8475, 10915, 12543, 20001, 20905, 32745, 33335, 54575, 62715, 100005, 104525, 163725, 166675, 246679, 313575, 500025, 740037, 1233395, 3700185, 6166975, 18500925]

約数ペア:

[(1, 18500925), (3, 6166975), (5, 3700185), (15, 1233395), (25, 740037), (37, 500025), (59, 313575), (75, 246679), (111, 166675), (113, 163725), (177, 104525), (185, 100005), (295, 62715), (339, 54575), (555, 33335), (565, 32745), (885, 20905), (925, 20001), (1475, 12543), (1695, 10915), (2183, 8475), (2775, 6667), (2825, 6549), (4181, 4425)]