21879557680

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1\times {\mathrm{7607}}^1$

素因数の和:8006

約数の個数: 80

約数和(自身を含む): 51424297920

約数和(自身を除く): 29544740240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 229, 314, 458, 628, 785, 916, 1145, 1256, 1570, 1832, 2290, 2512, 3140, 3664, 4580, 6280, 7607, 9160, 12560, 15214, 18320, 30428, 35953, 38035, 60856, 71906, 76070, 121712, 143812, 152140, 179765, 287624, 304280, 359530, 575248, 608560, 719060, 1194299, 1438120, 1742003, 2388598, 2876240, 3484006, 4777196, 5971495, 6968012, 8710015, 9554392, 11942990, 13936024, 17420030, 19108784, 23885980, 27872048, 34840060, 47771960, 69680120, 95543920, 139360240, 273494471, 546988942, 1093977884, 1367472355, 2187955768, 2734944710, 4375911536, 5469889420, 10939778840, 21879557680]

約数ペア:

[(1, 21879557680), (2, 10939778840), (4, 5469889420), (5, 4375911536), (8, 2734944710), (10, 2187955768), (16, 1367472355), (20, 1093977884), (40, 546988942), (80, 273494471), (157, 139360240), (229, 95543920), (314, 69680120), (458, 47771960), (628, 34840060), (785, 27872048), (916, 23885980), (1145, 19108784), (1256, 17420030), (1570, 13936024), (1832, 11942990), (2290, 9554392), (2512, 8710015), (3140, 6968012), (3664, 5971495), (4580, 4777196), (6280, 3484006), (7607, 2876240), (9160, 2388598), (12560, 1742003), (15214, 1438120), (18320, 1194299), (30428, 719060), (35953, 608560), (38035, 575248), (60856, 359530), (71906, 304280), (76070, 287624), (121712, 179765), (143812, 152140)]