21985680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{907}}^1$

素因数の和:1024

約数の個数: 80

約数和(自身を含む): 68906304

約数和(自身を除く): 46920624

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 101, 120, 202, 240, 303, 404, 505, 606, 808, 907, 1010, 1212, 1515, 1616, 1814, 2020, 2424, 2721, 3030, 3628, 4040, 4535, 4848, 5442, 6060, 7256, 8080, 9070, 10884, 12120, 13605, 14512, 18140, 21768, 24240, 27210, 36280, 43536, 54420, 72560, 91607, 108840, 183214, 217680, 274821, 366428, 458035, 549642, 732856, 916070, 1099284, 1374105, 1465712, 1832140, 2198568, 2748210, 3664280, 4397136, 5496420, 7328560, 10992840, 21985680]

約数ペア:

[(1, 21985680), (2, 10992840), (3, 7328560), (4, 5496420), (5, 4397136), (6, 3664280), (8, 2748210), (10, 2198568), (12, 1832140), (15, 1465712), (16, 1374105), (20, 1099284), (24, 916070), (30, 732856), (40, 549642), (48, 458035), (60, 366428), (80, 274821), (101, 217680), (120, 183214), (202, 108840), (240, 91607), (303, 72560), (404, 54420), (505, 43536), (606, 36280), (808, 27210), (907, 24240), (1010, 21768), (1212, 18140), (1515, 14512), (1616, 13605), (1814, 12120), (2020, 10884), (2424, 9070), (2721, 8080), (3030, 7256), (3628, 6060), (4040, 5442), (4535, 4848)]