16493080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{223}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 38162880

約数和(自身を除く): 21669800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 223, 344, 430, 446, 860, 892, 1115, 1720, 1784, 1849, 2230, 3698, 4460, 7396, 8920, 9245, 9589, 14792, 18490, 19178, 36980, 38356, 47945, 73960, 76712, 95890, 191780, 383560, 412327, 824654, 1649308, 2061635, 3298616, 4123270, 8246540, 16493080]

約数ペア:

[(1, 16493080), (2, 8246540), (4, 4123270), (5, 3298616), (8, 2061635), (10, 1649308), (20, 824654), (40, 412327), (43, 383560), (86, 191780), (172, 95890), (215, 76712), (223, 73960), (344, 47945), (430, 38356), (446, 36980), (860, 19178), (892, 18490), (1115, 14792), (1720, 9589), (1784, 9245), (1849, 8920), (2230, 7396), (3698, 4460)]