257175240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1451}}^1$

素因数の和:1683

約数の個数: 128

約数和(自身を含む): 886533120

約数和(自身を除く): 629357880

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, 211, 280, 420, 422, 633, 840, 844, 1055, 1266, 1451, 1477, 1688, 2110, 2532, 2902, 2954, 3165, 4220, 4353, 4431, 5064, 5804, 5908, 6330, 7255, 7385, 8440, 8706, 8862, 10157, 11608, 11816, 12660, 14510, 14770, 17412, 17724, 20314, 21765, 22155, 25320, 29020, 29540, 30471, 34824, 35448, 40628, 43530, 44310, 50785, 58040, 59080, 60942, 81256, 87060, 88620, 101570, 121884, 152355, 174120, 177240, 203140, 243768, 304710, 306161, 406280, 609420, 612322, 918483, 1218840, 1224644, 1530805, 1836966, 2143127, 2449288, 3061610, 3673932, 4286254, 4592415, 6123220, 6429381, 7347864, 8572508, 9184830, 10715635, 12246440, 12858762, 17145016, 18369660, 21431270, 25717524, 32146905, 36739320, 42862540, 51435048, 64293810, 85725080, 128587620, 257175240]

約数ペア:

[(1, 257175240), (2, 128587620), (3, 85725080), (4, 64293810), (5, 51435048), (6, 42862540), (7, 36739320), (8, 32146905), (10, 25717524), (12, 21431270), (14, 18369660), (15, 17145016), (20, 12858762), (21, 12246440), (24, 10715635), (28, 9184830), (30, 8572508), (35, 7347864), (40, 6429381), (42, 6123220), (56, 4592415), (60, 4286254), (70, 3673932), (84, 3061610), (105, 2449288), (120, 2143127), (140, 1836966), (168, 1530805), (210, 1224644), (211, 1218840), (280, 918483), (420, 612322), (422, 609420), (633, 406280), (840, 306161), (844, 304710), (1055, 243768), (1266, 203140), (1451, 177240), (1477, 174120), (1688, 152355), (2110, 121884), (2532, 101570), (2902, 88620), (2954, 87060), (3165, 81256), (4220, 60942), (4353, 59080), (4431, 58040), (5064, 50785), (5804, 44310), (5908, 43530), (6330, 40628), (7255, 35448), (7385, 34824), (8440, 30471), (8706, 29540), (8862, 29020), (10157, 25320), (11608, 22155), (11816, 21765), (12660, 20314), (14510, 17724), (14770, 17412)]