20994050

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:97

約数の個数: 144

約数和(自身を含む): 53434080

約数和(自身を除く): 32440030

約数列:

[1, 2, 5, 7, 10, 11, 14, 19, 22, 25, 35, 38, 41, 49, 50, 55, 70, 77, 82, 95, 98, 110, 133, 154, 175, 190, 205, 209, 245, 266, 275, 287, 350, 385, 410, 418, 451, 475, 490, 539, 550, 574, 665, 770, 779, 902, 931, 950, 1025, 1045, 1078, 1225, 1330, 1435, 1463, 1558, 1862, 1925, 2009, 2050, 2090, 2255, 2450, 2695, 2870, 2926, 3157, 3325, 3850, 3895, 4018, 4510, 4655, 5225, 5390, 5453, 6314, 6650, 7175, 7315, 7790, 8569, 9310, 10045, 10241, 10450, 10906, 11275, 13475, 14350, 14630, 15785, 17138, 19475, 20090, 20482, 22099, 22550, 23275, 26950, 27265, 31570, 36575, 38171, 38950, 42845, 44198, 46550, 50225, 51205, 54530, 59983, 73150, 76342, 78925, 85690, 100450, 102410, 110495, 119966, 136325, 157850, 190855, 214225, 220990, 256025, 272650, 299915, 381710, 419881, 428450, 512050, 552475, 599830, 839762, 954275, 1104950, 1499575, 1908550, 2099405, 2999150, 4198810, 10497025, 20994050]

約数ペア:

[(1, 20994050), (2, 10497025), (5, 4198810), (7, 2999150), (10, 2099405), (11, 1908550), (14, 1499575), (19, 1104950), (22, 954275), (25, 839762), (35, 599830), (38, 552475), (41, 512050), (49, 428450), (50, 419881), (55, 381710), (70, 299915), (77, 272650), (82, 256025), (95, 220990), (98, 214225), (110, 190855), (133, 157850), (154, 136325), (175, 119966), (190, 110495), (205, 102410), (209, 100450), (245, 85690), (266, 78925), (275, 76342), (287, 73150), (350, 59983), (385, 54530), (410, 51205), (418, 50225), (451, 46550), (475, 44198), (490, 42845), (539, 38950), (550, 38171), (574, 36575), (665, 31570), (770, 27265), (779, 26950), (902, 23275), (931, 22550), (950, 22099), (1025, 20482), (1045, 20090), (1078, 19475), (1225, 17138), (1330, 15785), (1435, 14630), (1463, 14350), (1558, 13475), (1862, 11275), (1925, 10906), (2009, 10450), (2050, 10241), (2090, 10045), (2255, 9310), (2450, 8569), (2695, 7790), (2870, 7315), (2926, 7175), (3157, 6650), (3325, 6314), (3850, 5453), (3895, 5390), (4018, 5225), (4510, 4655)]