20690872006

素因数分解:

$2^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{2243}}^1$

素因数の和:2403

約数の個数: 80

約数和(自身を含む): 38693193264

約数和(自身を除く): 18002321258

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 113, 119, 226, 238, 343, 686, 791, 833, 1582, 1666, 1921, 2243, 2401, 3842, 4486, 4802, 5537, 5831, 11074, 11662, 13447, 15701, 26894, 31402, 38131, 38759, 40817, 76262, 77518, 81634, 94129, 109907, 188258, 219814, 253459, 266917, 271313, 506918, 533834, 542626, 658903, 769349, 1317806, 1538698, 1774213, 1868419, 3548426, 3736838, 4308803, 4612321, 5385443, 8617606, 9224642, 10770886, 12419491, 13078933, 24838982, 26157866, 30161621, 60323242, 86936437, 91552531, 173872874, 183105062, 211131347, 422262694, 608555059, 1217110118, 1477919429, 2955838858, 10345436003, 20690872006]

約数ペア:

[(1, 20690872006), (2, 10345436003), (7, 2955838858), (14, 1477919429), (17, 1217110118), (34, 608555059), (49, 422262694), (98, 211131347), (113, 183105062), (119, 173872874), (226, 91552531), (238, 86936437), (343, 60323242), (686, 30161621), (791, 26157866), (833, 24838982), (1582, 13078933), (1666, 12419491), (1921, 10770886), (2243, 9224642), (2401, 8617606), (3842, 5385443), (4486, 4612321), (4802, 4308803), (5537, 3736838), (5831, 3548426), (11074, 1868419), (11662, 1774213), (13447, 1538698), (15701, 1317806), (26894, 769349), (31402, 658903), (38131, 542626), (38759, 533834), (40817, 506918), (76262, 271313), (77518, 266917), (81634, 253459), (94129, 219814), (109907, 188258)]