1991771880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{2371157}}^1$

素因数の和:2371178

約数の個数: 64

約数和(自身を含む): 6828935040

約数和(自身を除く): 4837163160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 2371157, 4742314, 7113471, 9484628, 11855785, 14226942, 16598099, 18969256, 23711570, 28453884, 33196198, 35567355, 47423140, 49794297, 56907768, 66392396, 71134710, 82990495, 94846280, 99588594, 132784792, 142269420, 165980990, 199177188, 248971485, 284538840, 331961980, 398354376, 497942970, 663923960, 995885940, 1991771880]

約数ペア:

[(1, 1991771880), (2, 995885940), (3, 663923960), (4, 497942970), (5, 398354376), (6, 331961980), (7, 284538840), (8, 248971485), (10, 199177188), (12, 165980990), (14, 142269420), (15, 132784792), (20, 99588594), (21, 94846280), (24, 82990495), (28, 71134710), (30, 66392396), (35, 56907768), (40, 49794297), (42, 47423140), (56, 35567355), (60, 33196198), (70, 28453884), (84, 23711570), (105, 18969256), (120, 16598099), (140, 14226942), (168, 11855785), (210, 9484628), (280, 7113471), (420, 4742314), (840, 2371157)]