81653800

素因数分解:

$2^3\times 5^2\times {\mathrm{113}}^1\times {\mathrm{3613}}^1$

素因数の和:3742

約数の個数: 48

約数和(自身を含む): 191578140

約数和(自身を除く): 109924340

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 113, 200, 226, 452, 565, 904, 1130, 2260, 2825, 3613, 4520, 5650, 7226, 11300, 14452, 18065, 22600, 28904, 36130, 72260, 90325, 144520, 180650, 361300, 408269, 722600, 816538, 1633076, 2041345, 3266152, 4082690, 8165380, 10206725, 16330760, 20413450, 40826900, 81653800]

約数ペア:

[(1, 81653800), (2, 40826900), (4, 20413450), (5, 16330760), (8, 10206725), (10, 8165380), (20, 4082690), (25, 3266152), (40, 2041345), (50, 1633076), (100, 816538), (113, 722600), (200, 408269), (226, 361300), (452, 180650), (565, 144520), (904, 90325), (1130, 72260), (2260, 36130), (2825, 28904), (3613, 22600), (4520, 18065), (5650, 14452), (7226, 11300)]