20577120

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{263}}^1$

素因数の和:444

約数の個数: 96

約数和(自身を含む): 65463552

約数和(自身を除く): 44886432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 163, 240, 263, 326, 480, 489, 526, 652, 789, 815, 978, 1052, 1304, 1315, 1578, 1630, 1956, 2104, 2445, 2608, 2630, 3156, 3260, 3912, 3945, 4208, 4890, 5216, 5260, 6312, 6520, 7824, 7890, 8416, 9780, 10520, 12624, 13040, 15648, 15780, 19560, 21040, 25248, 26080, 31560, 39120, 42080, 42869, 63120, 78240, 85738, 126240, 128607, 171476, 214345, 257214, 342952, 428690, 514428, 643035, 685904, 857380, 1028856, 1286070, 1371808, 1714760, 2057712, 2572140, 3429520, 4115424, 5144280, 6859040, 10288560, 20577120]

約数ペア:

[(1, 20577120), (2, 10288560), (3, 6859040), (4, 5144280), (5, 4115424), (6, 3429520), (8, 2572140), (10, 2057712), (12, 1714760), (15, 1371808), (16, 1286070), (20, 1028856), (24, 857380), (30, 685904), (32, 643035), (40, 514428), (48, 428690), (60, 342952), (80, 257214), (96, 214345), (120, 171476), (160, 128607), (163, 126240), (240, 85738), (263, 78240), (326, 63120), (480, 42869), (489, 42080), (526, 39120), (652, 31560), (789, 26080), (815, 25248), (978, 21040), (1052, 19560), (1304, 15780), (1315, 15648), (1578, 13040), (1630, 12624), (1956, 10520), (2104, 9780), (2445, 8416), (2608, 7890), (2630, 7824), (3156, 6520), (3260, 6312), (3912, 5260), (3945, 5216), (4208, 4890)]