64750025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1163}}^1$

素因数の和:1321

約数の個数: 24

約数和(自身を含む): 85735584

約数和(自身を除く): 20985559

約数列:

[1, 5, 17, 25, 85, 131, 425, 655, 1163, 2227, 3275, 5815, 11135, 19771, 29075, 55675, 98855, 152353, 494275, 761765, 2590001, 3808825, 12950005, 64750025]

約数ペア:

[(1, 64750025), (5, 12950005), (17, 3808825), (25, 2590001), (85, 761765), (131, 494275), (425, 152353), (655, 98855), (1163, 55675), (2227, 29075), (3275, 19771), (5815, 11135)]