12818320

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{983}}^1$

素因数の和:1159

約数の個数: 40

約数和(自身を含む): 30015936

約数和(自身を除く): 17197616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 983, 1304, 1630, 1966, 2608, 3260, 3932, 4915, 6520, 7864, 9830, 13040, 15728, 19660, 39320, 78640, 160229, 320458, 640916, 801145, 1281832, 1602290, 2563664, 3204580, 6409160, 12818320]

約数ペア:

[(1, 12818320), (2, 6409160), (4, 3204580), (5, 2563664), (8, 1602290), (10, 1281832), (16, 801145), (20, 640916), (40, 320458), (80, 160229), (163, 78640), (326, 39320), (652, 19660), (815, 15728), (983, 13040), (1304, 9830), (1630, 7864), (1966, 6520), (2608, 4915), (3260, 3932)]