207389375

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:317

約数の個数: 40

約数和(自身を含む): 278348400

約数和(自身を除く): 70959025

約数列:

[1, 5, 17, 25, 85, 125, 131, 149, 425, 625, 655, 745, 2125, 2227, 2533, 3275, 3725, 10625, 11135, 12665, 16375, 18625, 19519, 55675, 63325, 81875, 93125, 97595, 278375, 316625, 331823, 487975, 1391875, 1583125, 1659115, 2439875, 8295575, 12199375, 41477875, 207389375]

約数ペア:

[(1, 207389375), (5, 41477875), (17, 12199375), (25, 8295575), (85, 2439875), (125, 1659115), (131, 1583125), (149, 1391875), (425, 487975), (625, 331823), (655, 316625), (745, 278375), (2125, 97595), (2227, 93125), (2533, 81875), (3275, 63325), (3725, 55675), (10625, 19519), (11135, 18625), (12665, 16375)]