320879379940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{58171}}^1$

素因数の和:58290

約数の個数: 144

約数和(自身を含む): 815176801152

約数和(自身を除く): 494297421212

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 41, 62, 70, 82, 124, 140, 155, 164, 205, 217, 287, 310, 410, 434, 574, 620, 820, 868, 961, 1085, 1148, 1271, 1435, 1922, 2170, 2542, 2870, 3844, 4340, 4805, 5084, 5740, 6355, 6727, 8897, 9610, 12710, 13454, 17794, 19220, 25420, 26908, 33635, 35588, 39401, 44485, 58171, 67270, 78802, 88970, 116342, 134540, 157604, 177940, 197005, 232684, 275807, 290855, 394010, 407197, 551614, 581710, 788020, 814394, 1103228, 1163420, 1379035, 1628788, 1803301, 2035985, 2385011, 2758070, 3606602, 4071970, 4770022, 5516140, 7213204, 8143940, 9016505, 9540044, 11925055, 12623107, 16695077, 18033010, 23850110, 25246214, 33390154, 36066020, 47700220, 50492428, 55902331, 63115535, 66780308, 73935341, 83475385, 111804662, 126231070, 147870682, 166950770, 223609324, 252462140, 279511655, 295741364, 333901540, 369676705, 391316317, 517547387, 559023310, 739353410, 782632634, 1035094774, 1118046620, 1478706820, 1565265268, 1956581585, 2070189548, 2291995571, 2587736935, 3913163170, 4583991142, 5175473870, 7826326340, 9167982284, 10350947740, 11459977855, 16043968997, 22919955710, 32087937994, 45839911420, 64175875988, 80219844985, 160439689970, 320879379940]

約数ペア:

[(1, 320879379940), (2, 160439689970), (4, 80219844985), (5, 64175875988), (7, 45839911420), (10, 32087937994), (14, 22919955710), (20, 16043968997), (28, 11459977855), (31, 10350947740), (35, 9167982284), (41, 7826326340), (62, 5175473870), (70, 4583991142), (82, 3913163170), (124, 2587736935), (140, 2291995571), (155, 2070189548), (164, 1956581585), (205, 1565265268), (217, 1478706820), (287, 1118046620), (310, 1035094774), (410, 782632634), (434, 739353410), (574, 559023310), (620, 517547387), (820, 391316317), (868, 369676705), (961, 333901540), (1085, 295741364), (1148, 279511655), (1271, 252462140), (1435, 223609324), (1922, 166950770), (2170, 147870682), (2542, 126231070), (2870, 111804662), (3844, 83475385), (4340, 73935341), (4805, 66780308), (5084, 63115535), (5740, 55902331), (6355, 50492428), (6727, 47700220), (8897, 36066020), (9610, 33390154), (12710, 25246214), (13454, 23850110), (17794, 18033010), (19220, 16695077), (25420, 12623107), (26908, 11925055), (33635, 9540044), (35588, 9016505), (39401, 8143940), (44485, 7213204), (58171, 5516140), (67270, 4770022), (78802, 4071970), (88970, 3606602), (116342, 2758070), (134540, 2385011), (157604, 2035985), (177940, 1803301), (197005, 1628788), (232684, 1379035), (275807, 1163420), (290855, 1103228), (394010, 814394), (407197, 788020), (551614, 581710)]