249948080

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{7639}}^1$

素因数の和:8061

約数の個数: 40

約数和(自身を含む): 582626400

約数和(自身を除く): 332678320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 3272, 4090, 6544, 7639, 8180, 15278, 16360, 30556, 32720, 38195, 61112, 76390, 122224, 152780, 305560, 611120, 3124351, 6248702, 12497404, 15621755, 24994808, 31243510, 49989616, 62487020, 124974040, 249948080]

約数ペア:

[(1, 249948080), (2, 124974040), (4, 62487020), (5, 49989616), (8, 31243510), (10, 24994808), (16, 15621755), (20, 12497404), (40, 6248702), (80, 3124351), (409, 611120), (818, 305560), (1636, 152780), (2045, 122224), (3272, 76390), (4090, 61112), (6544, 38195), (7639, 32720), (8180, 30556), (15278, 16360)]