20870010

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:388

約数の個数: 96

約数和(自身を含む): 62704512

約数和(自身を除く): 41834502

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 157, 210, 211, 314, 315, 422, 471, 630, 633, 785, 942, 1055, 1099, 1266, 1413, 1477, 1570, 1899, 2110, 2198, 2355, 2826, 2954, 3165, 3297, 3798, 4431, 4710, 5495, 6330, 6594, 7065, 7385, 8862, 9495, 9891, 10990, 13293, 14130, 14770, 16485, 18990, 19782, 22155, 26586, 32970, 33127, 44310, 49455, 66254, 66465, 98910, 99381, 132930, 165635, 198762, 231889, 298143, 331270, 463778, 496905, 596286, 695667, 993810, 1159445, 1391334, 1490715, 2087001, 2318890, 2981430, 3478335, 4174002, 6956670, 10435005, 20870010]

約数ペア:

[(1, 20870010), (2, 10435005), (3, 6956670), (5, 4174002), (6, 3478335), (7, 2981430), (9, 2318890), (10, 2087001), (14, 1490715), (15, 1391334), (18, 1159445), (21, 993810), (30, 695667), (35, 596286), (42, 496905), (45, 463778), (63, 331270), (70, 298143), (90, 231889), (105, 198762), (126, 165635), (157, 132930), (210, 99381), (211, 98910), (314, 66465), (315, 66254), (422, 49455), (471, 44310), (630, 33127), (633, 32970), (785, 26586), (942, 22155), (1055, 19782), (1099, 18990), (1266, 16485), (1413, 14770), (1477, 14130), (1570, 13293), (1899, 10990), (2110, 9891), (2198, 9495), (2355, 8862), (2826, 7385), (2954, 7065), (3165, 6594), (3297, 6330), (3798, 5495), (4431, 4710)]