82161640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:235

約数の個数: 128

約数和(自身を含む): 214617600

約数和(自身を除く): 132455960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 47, 55, 58, 88, 94, 110, 116, 137, 145, 188, 220, 232, 235, 274, 290, 319, 376, 440, 470, 517, 548, 580, 638, 685, 940, 1034, 1096, 1160, 1276, 1363, 1370, 1507, 1595, 1880, 2068, 2552, 2585, 2726, 2740, 3014, 3190, 3973, 4136, 5170, 5452, 5480, 6028, 6380, 6439, 6815, 7535, 7946, 10340, 10904, 12056, 12760, 12878, 13630, 14993, 15070, 15892, 19865, 20680, 25756, 27260, 29986, 30140, 31784, 32195, 39730, 43703, 51512, 54520, 59972, 60280, 64390, 70829, 74965, 79460, 87406, 119944, 128780, 141658, 149930, 158920, 174812, 186731, 218515, 257560, 283316, 299860, 349624, 354145, 373462, 437030, 566632, 599720, 708290, 746924, 874060, 933655, 1416580, 1493848, 1748120, 1867310, 2054041, 2833160, 3734620, 4108082, 7469240, 8216164, 10270205, 16432328, 20540410, 41080820, 82161640]

約数ペア:

[(1, 82161640), (2, 41080820), (4, 20540410), (5, 16432328), (8, 10270205), (10, 8216164), (11, 7469240), (20, 4108082), (22, 3734620), (29, 2833160), (40, 2054041), (44, 1867310), (47, 1748120), (55, 1493848), (58, 1416580), (88, 933655), (94, 874060), (110, 746924), (116, 708290), (137, 599720), (145, 566632), (188, 437030), (220, 373462), (232, 354145), (235, 349624), (274, 299860), (290, 283316), (319, 257560), (376, 218515), (440, 186731), (470, 174812), (517, 158920), (548, 149930), (580, 141658), (638, 128780), (685, 119944), (940, 87406), (1034, 79460), (1096, 74965), (1160, 70829), (1276, 64390), (1363, 60280), (1370, 59972), (1507, 54520), (1595, 51512), (1880, 43703), (2068, 39730), (2552, 32195), (2585, 31784), (2726, 30140), (2740, 29986), (3014, 27260), (3190, 25756), (3973, 20680), (4136, 19865), (5170, 15892), (5452, 15070), (5480, 14993), (6028, 13630), (6380, 12878), (6439, 12760), (6815, 12056), (7535, 10904), (7946, 10340)]