20579790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:238

約数の個数: 128

約数和(自身を含む): 63037440

約数和(自身を除く): 42457650

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 59, 66, 70, 77, 105, 110, 118, 151, 154, 165, 177, 210, 231, 295, 302, 330, 354, 385, 413, 453, 462, 590, 649, 755, 770, 826, 885, 906, 1057, 1155, 1239, 1298, 1510, 1661, 1770, 1947, 2065, 2114, 2265, 2310, 2478, 3171, 3245, 3322, 3894, 4130, 4530, 4543, 4983, 5285, 6195, 6342, 6490, 8305, 8909, 9086, 9735, 9966, 10570, 11627, 12390, 13629, 15855, 16610, 17818, 19470, 22715, 23254, 24915, 26727, 27258, 31710, 34881, 44545, 45430, 49830, 53454, 58135, 62363, 68145, 69762, 89090, 97999, 116270, 124726, 133635, 136290, 174405, 187089, 195998, 267270, 293997, 311815, 348810, 374178, 489995, 587994, 623630, 685993, 935445, 979990, 1371986, 1469985, 1870890, 2057979, 2939970, 3429965, 4115958, 6859930, 10289895, 20579790]

約数ペア:

[(1, 20579790), (2, 10289895), (3, 6859930), (5, 4115958), (6, 3429965), (7, 2939970), (10, 2057979), (11, 1870890), (14, 1469985), (15, 1371986), (21, 979990), (22, 935445), (30, 685993), (33, 623630), (35, 587994), (42, 489995), (55, 374178), (59, 348810), (66, 311815), (70, 293997), (77, 267270), (105, 195998), (110, 187089), (118, 174405), (151, 136290), (154, 133635), (165, 124726), (177, 116270), (210, 97999), (231, 89090), (295, 69762), (302, 68145), (330, 62363), (354, 58135), (385, 53454), (413, 49830), (453, 45430), (462, 44545), (590, 34881), (649, 31710), (755, 27258), (770, 26727), (826, 24915), (885, 23254), (906, 22715), (1057, 19470), (1155, 17818), (1239, 16610), (1298, 15855), (1510, 13629), (1661, 12390), (1770, 11627), (1947, 10570), (2065, 9966), (2114, 9735), (2265, 9086), (2310, 8909), (2478, 8305), (3171, 6490), (3245, 6342), (3322, 6195), (3894, 5285), (4130, 4983), (4530, 4543)]