1764872005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{20369}}^1$

素因数の和:20461

約数の個数: 32

約数和(自身を含む): 2409200640

約数和(自身を除く): 644328635

約数列:

[1, 5, 13, 31, 43, 65, 155, 215, 403, 559, 1333, 2015, 2795, 6665, 17329, 20369, 86645, 101845, 264797, 631439, 875867, 1323985, 3157195, 4379335, 8208707, 11386271, 27151877, 41043535, 56931355, 135759385, 352974401, 1764872005]

約数ペア:

[(1, 1764872005), (5, 352974401), (13, 135759385), (31, 56931355), (43, 41043535), (65, 27151877), (155, 11386271), (215, 8208707), (403, 4379335), (559, 3157195), (1333, 1323985), (2015, 875867), (2795, 631439), (6665, 264797), (17329, 101845), (20369, 86645)]