420937160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1$

素因数の和:1087

約数の個数: 128

約数和(自身を含む): 1139927040

約数和(自身を除く): 718989880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 41, 56, 70, 74, 82, 140, 148, 164, 185, 205, 259, 280, 287, 296, 328, 370, 410, 518, 574, 740, 820, 991, 1036, 1148, 1295, 1435, 1480, 1517, 1640, 1982, 2072, 2296, 2590, 2870, 3034, 3964, 4955, 5180, 5740, 6068, 6937, 7585, 7928, 9910, 10360, 10619, 11480, 12136, 13874, 15170, 19820, 21238, 27748, 30340, 34685, 36667, 39640, 40631, 42476, 53095, 55496, 60680, 69370, 73334, 81262, 84952, 106190, 138740, 146668, 162524, 183335, 203155, 212380, 256669, 277480, 284417, 293336, 325048, 366670, 406310, 424760, 513338, 568834, 733340, 812620, 1026676, 1137668, 1283345, 1422085, 1466680, 1503347, 1625240, 2053352, 2275336, 2566690, 2844170, 3006694, 5133380, 5688340, 6013388, 7516735, 10266760, 10523429, 11376680, 12026776, 15033470, 21046858, 30066940, 42093716, 52617145, 60133880, 84187432, 105234290, 210468580, 420937160]

約数ペア:

[(1, 420937160), (2, 210468580), (4, 105234290), (5, 84187432), (7, 60133880), (8, 52617145), (10, 42093716), (14, 30066940), (20, 21046858), (28, 15033470), (35, 12026776), (37, 11376680), (40, 10523429), (41, 10266760), (56, 7516735), (70, 6013388), (74, 5688340), (82, 5133380), (140, 3006694), (148, 2844170), (164, 2566690), (185, 2275336), (205, 2053352), (259, 1625240), (280, 1503347), (287, 1466680), (296, 1422085), (328, 1283345), (370, 1137668), (410, 1026676), (518, 812620), (574, 733340), (740, 568834), (820, 513338), (991, 424760), (1036, 406310), (1148, 366670), (1295, 325048), (1435, 293336), (1480, 284417), (1517, 277480), (1640, 256669), (1982, 212380), (2072, 203155), (2296, 183335), (2590, 162524), (2870, 146668), (3034, 138740), (3964, 106190), (4955, 84952), (5180, 81262), (5740, 73334), (6068, 69370), (6937, 60680), (7585, 55496), (7928, 53095), (9910, 42476), (10360, 40631), (10619, 39640), (11480, 36667), (12136, 34685), (13874, 30340), (15170, 27748), (19820, 21238)]