19852360780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{78823}}^1$

素因数の和:79103

約数の個数: 72

約数和(自身を含む): 48685801248

約数和(自身を除く): 28833440468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 257, 490, 514, 980, 1028, 1285, 1799, 2570, 3598, 5140, 7196, 8995, 12593, 17990, 25186, 35980, 50372, 62965, 78823, 125930, 157646, 251860, 315292, 394115, 551761, 788230, 1103522, 1576460, 2207044, 2758805, 3862327, 5517610, 7724654, 11035220, 15449308, 19311635, 20257511, 38623270, 40515022, 77246540, 81030044, 101287555, 141802577, 202575110, 283605154, 405150220, 567210308, 709012885, 992618039, 1418025770, 1985236078, 2836051540, 3970472156, 4963090195, 9926180390, 19852360780]

約数ペア:

[(1, 19852360780), (2, 9926180390), (4, 4963090195), (5, 3970472156), (7, 2836051540), (10, 1985236078), (14, 1418025770), (20, 992618039), (28, 709012885), (35, 567210308), (49, 405150220), (70, 283605154), (98, 202575110), (140, 141802577), (196, 101287555), (245, 81030044), (257, 77246540), (490, 40515022), (514, 38623270), (980, 20257511), (1028, 19311635), (1285, 15449308), (1799, 11035220), (2570, 7724654), (3598, 5517610), (5140, 3862327), (7196, 2758805), (8995, 2207044), (12593, 1576460), (17990, 1103522), (25186, 788230), (35980, 551761), (50372, 394115), (62965, 315292), (78823, 251860), (125930, 157646)]