31429775

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:252

約数の個数: 36

約数和(自身を含む): 43432488

約数和(自身を除く): 12002713

約数列:

[1, 5, 13, 25, 43, 65, 169, 173, 215, 325, 559, 845, 865, 1075, 2249, 2795, 4225, 4325, 7267, 7439, 11245, 13975, 29237, 36335, 37195, 56225, 96707, 146185, 181675, 185975, 483535, 730925, 1257191, 2417675, 6285955, 31429775]

約数ペア:

[(1, 31429775), (5, 6285955), (13, 2417675), (25, 1257191), (43, 730925), (65, 483535), (169, 185975), (173, 181675), (215, 146185), (325, 96707), (559, 56225), (845, 37195), (865, 36335), (1075, 29237), (2249, 13975), (2795, 11245), (4225, 7439), (4325, 7267)]