207740975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{631}}^1\times {\mathrm{1013}}^1$

素因数の和:1667

約数の個数: 24

約数和(自身を含む): 278128032

約数和(自身を除く): 70387057

約数列:

[1, 5, 13, 25, 65, 325, 631, 1013, 3155, 5065, 8203, 13169, 15775, 25325, 41015, 65845, 205075, 329225, 639203, 3196015, 8309639, 15980075, 41548195, 207740975]

約数ペア:

[(1, 207740975), (5, 41548195), (13, 15980075), (25, 8309639), (65, 3196015), (325, 639203), (631, 329225), (1013, 205075), (3155, 65845), (5065, 41015), (8203, 25325), (13169, 15775)]