17400145

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 26265600

約数和(自身を除く): 8865455

約数列:

[1, 5, 7, 29, 31, 35, 49, 79, 145, 155, 203, 217, 245, 395, 553, 899, 1015, 1085, 1421, 1519, 2291, 2449, 2765, 3871, 4495, 6293, 7105, 7595, 11455, 12245, 16037, 17143, 19355, 31465, 44051, 71021, 80185, 85715, 112259, 120001, 220255, 355105, 497147, 561295, 600005, 2485735, 3480029, 17400145]

約数ペア:

[(1, 17400145), (5, 3480029), (7, 2485735), (29, 600005), (31, 561295), (35, 497147), (49, 355105), (79, 220255), (145, 120001), (155, 112259), (203, 85715), (217, 80185), (245, 71021), (395, 44051), (553, 31465), (899, 19355), (1015, 17143), (1085, 16037), (1421, 12245), (1519, 11455), (2291, 7595), (2449, 7105), (2765, 6293), (3871, 4495)]