51721040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4861}}^1$

素因数の和:4900

約数の個数: 80

約数和(自身を含む): 144693120

約数和(自身を除く): 92972080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 4861, 5320, 9722, 10640, 19444, 24305, 34027, 38888, 48610, 68054, 77776, 92359, 97220, 136108, 170135, 184718, 194440, 272216, 340270, 369436, 388880, 461795, 544432, 646513, 680540, 738872, 923590, 1293026, 1361080, 1477744, 1847180, 2586052, 2722160, 3232565, 3694360, 5172104, 6465130, 7388720, 10344208, 12930260, 25860520, 51721040]

約数ペア:

[(1, 51721040), (2, 25860520), (4, 12930260), (5, 10344208), (7, 7388720), (8, 6465130), (10, 5172104), (14, 3694360), (16, 3232565), (19, 2722160), (20, 2586052), (28, 1847180), (35, 1477744), (38, 1361080), (40, 1293026), (56, 923590), (70, 738872), (76, 680540), (80, 646513), (95, 544432), (112, 461795), (133, 388880), (140, 369436), (152, 340270), (190, 272216), (266, 194440), (280, 184718), (304, 170135), (380, 136108), (532, 97220), (560, 92359), (665, 77776), (760, 68054), (1064, 48610), (1330, 38888), (1520, 34027), (2128, 24305), (2660, 19444), (4861, 10640), (5320, 9722)]