7800065

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 12257280

約数和(自身を除く): 4457215

約数列:

[1, 5, 7, 13, 31, 35, 49, 65, 79, 91, 155, 217, 245, 395, 403, 455, 553, 637, 1027, 1085, 1519, 2015, 2449, 2765, 2821, 3185, 3871, 5135, 7189, 7595, 12245, 14105, 17143, 19355, 19747, 31837, 35945, 50323, 85715, 98735, 120001, 159185, 222859, 251615, 600005, 1114295, 1560013, 7800065]

約数ペア:

[(1, 7800065), (5, 1560013), (7, 1114295), (13, 600005), (31, 251615), (35, 222859), (49, 159185), (65, 120001), (79, 98735), (91, 85715), (155, 50323), (217, 35945), (245, 31837), (395, 19747), (403, 19355), (455, 17143), (553, 14105), (637, 12245), (1027, 7595), (1085, 7189), (1519, 5135), (2015, 3871), (2449, 3185), (2765, 2821)]