280807870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:242

約数の個数: 128

約数和(自身を含む): 646963200

約数和(自身を除く): 366155330

約数列:

[1, 2, 5, 7, 10, 14, 17, 29, 34, 35, 58, 70, 79, 85, 103, 119, 145, 158, 170, 203, 206, 238, 290, 395, 406, 493, 515, 553, 595, 721, 790, 986, 1015, 1030, 1106, 1190, 1343, 1442, 1751, 2030, 2291, 2465, 2686, 2765, 2987, 3451, 3502, 3605, 4582, 4930, 5530, 5974, 6715, 6902, 7210, 8137, 8755, 9401, 11455, 12257, 13430, 14935, 16037, 16274, 17255, 17510, 18802, 20909, 22910, 24514, 29870, 32074, 34510, 38947, 40685, 41818, 47005, 50779, 56959, 61285, 77894, 80185, 81370, 94010, 101558, 104545, 113918, 122570, 138329, 160370, 194735, 209090, 235973, 253895, 272629, 276658, 284795, 355453, 389470, 471946, 507790, 545258, 569590, 691645, 710906, 968303, 1179865, 1363145, 1383290, 1651811, 1777265, 1936606, 2359730, 2726290, 3303622, 3554530, 4011541, 4841515, 8023082, 8259055, 9683030, 16518110, 20057705, 28080787, 40115410, 56161574, 140403935, 280807870]

約数ペア:

[(1, 280807870), (2, 140403935), (5, 56161574), (7, 40115410), (10, 28080787), (14, 20057705), (17, 16518110), (29, 9683030), (34, 8259055), (35, 8023082), (58, 4841515), (70, 4011541), (79, 3554530), (85, 3303622), (103, 2726290), (119, 2359730), (145, 1936606), (158, 1777265), (170, 1651811), (203, 1383290), (206, 1363145), (238, 1179865), (290, 968303), (395, 710906), (406, 691645), (493, 569590), (515, 545258), (553, 507790), (595, 471946), (721, 389470), (790, 355453), (986, 284795), (1015, 276658), (1030, 272629), (1106, 253895), (1190, 235973), (1343, 209090), (1442, 194735), (1751, 160370), (2030, 138329), (2291, 122570), (2465, 113918), (2686, 104545), (2765, 101558), (2987, 94010), (3451, 81370), (3502, 80185), (3605, 77894), (4582, 61285), (4930, 56959), (5530, 50779), (5974, 47005), (6715, 41818), (6902, 40685), (7210, 38947), (8137, 34510), (8755, 32074), (9401, 29870), (11455, 24514), (12257, 22910), (13430, 20909), (14935, 18802), (16037, 17510), (16274, 17255)]