25193915

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 33587136

約数和(自身を除く): 8393221

約数列:

[1, 5, 17, 43, 61, 85, 113, 215, 305, 565, 731, 1037, 1921, 2623, 3655, 4859, 5185, 6893, 9605, 13115, 24295, 34465, 44591, 82603, 117181, 222955, 296399, 413015, 585905, 1481995, 5038783, 25193915]

約数ペア:

[(1, 25193915), (5, 5038783), (17, 1481995), (43, 585905), (61, 413015), (85, 296399), (113, 222955), (215, 117181), (305, 82603), (565, 44591), (731, 34465), (1037, 24295), (1921, 13115), (2623, 9605), (3655, 6893), (4859, 5185)]