81204840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{225569}}^1$

素因数の和:225586

約数の個数: 48

約数和(自身を含む): 263916900

約数和(自身を除く): 182712060

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 225569, 451138, 676707, 902276, 1127845, 1353414, 1804552, 2030121, 2255690, 2706828, 3383535, 4060242, 4511380, 5413656, 6767070, 8120484, 9022760, 10150605, 13534140, 16240968, 20301210, 27068280, 40602420, 81204840]

約数ペア:

[(1, 81204840), (2, 40602420), (3, 27068280), (4, 20301210), (5, 16240968), (6, 13534140), (8, 10150605), (9, 9022760), (10, 8120484), (12, 6767070), (15, 5413656), (18, 4511380), (20, 4060242), (24, 3383535), (30, 2706828), (36, 2255690), (40, 2030121), (45, 1804552), (60, 1353414), (72, 1127845), (90, 902276), (120, 676707), (180, 451138), (360, 225569)]