72726640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2129}}^1$

素因数の和:2210

約数の個数: 80

約数和(自身を含む): 196505280

約数和(自身を除く): 123778640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1220, 1708, 2129, 2135, 2440, 3416, 4258, 4270, 4880, 6832, 8516, 8540, 10645, 14903, 17032, 17080, 21290, 29806, 34064, 34160, 42580, 59612, 74515, 85160, 119224, 129869, 149030, 170320, 238448, 259738, 298060, 519476, 596120, 649345, 909083, 1038952, 1192240, 1298690, 1818166, 2077904, 2597380, 3636332, 4545415, 5194760, 7272664, 9090830, 10389520, 14545328, 18181660, 36363320, 72726640]

約数ペア:

[(1, 72726640), (2, 36363320), (4, 18181660), (5, 14545328), (7, 10389520), (8, 9090830), (10, 7272664), (14, 5194760), (16, 4545415), (20, 3636332), (28, 2597380), (35, 2077904), (40, 1818166), (56, 1298690), (61, 1192240), (70, 1038952), (80, 909083), (112, 649345), (122, 596120), (140, 519476), (244, 298060), (280, 259738), (305, 238448), (427, 170320), (488, 149030), (560, 129869), (610, 119224), (854, 85160), (976, 74515), (1220, 59612), (1708, 42580), (2129, 34160), (2135, 34064), (2440, 29806), (3416, 21290), (4258, 17080), (4270, 17032), (4880, 14903), (6832, 10645), (8516, 8540)]