201960425

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{27953}}^1$

素因数の和:27997

約数の個数: 18

約数和(自身を含む): 266038218

約数和(自身を除く): 64077793

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 7225, 27953, 139765, 475201, 698825, 2376005, 8078417, 11880025, 40392085, 201960425]

約数ペア:

[(1, 201960425), (5, 40392085), (17, 11880025), (25, 8078417), (85, 2376005), (289, 698825), (425, 475201), (1445, 139765), (7225, 27953)]