21751440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90631}}^1$

素因数の和:90647

約数の個数: 40

約数和(自身を含む): 67430208

約数和(自身を除く): 45678768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90631, 181262, 271893, 362524, 453155, 543786, 725048, 906310, 1087572, 1359465, 1450096, 1812620, 2175144, 2718930, 3625240, 4350288, 5437860, 7250480, 10875720, 21751440]

約数ペア:

[(1, 21751440), (2, 10875720), (3, 7250480), (4, 5437860), (5, 4350288), (6, 3625240), (8, 2718930), (10, 2175144), (12, 1812620), (15, 1450096), (16, 1359465), (20, 1087572), (24, 906310), (30, 725048), (40, 543786), (48, 453155), (60, 362524), (80, 271893), (120, 181262), (240, 90631)]