1285321688

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{620329}}^1$

素因数の和:620379

約数の個数: 32

約数和(自身を含む): 2828704800

約数和(自身を除く): 1543383112

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 296, 518, 1036, 2072, 620329, 1240658, 2481316, 4342303, 4962632, 8684606, 17369212, 22952173, 34738424, 45904346, 91808692, 160665211, 183617384, 321330422, 642660844, 1285321688]

約数ペア:

[(1, 1285321688), (2, 642660844), (4, 321330422), (7, 183617384), (8, 160665211), (14, 91808692), (28, 45904346), (37, 34738424), (56, 22952173), (74, 17369212), (148, 8684606), (259, 4962632), (296, 4342303), (518, 2481316), (1036, 1240658), (2072, 620329)]