80640368

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{223}}^1\times {\mathrm{233}}^1$

素因数の和:561

約数の個数: 40

約数和(自身を含む): 159239808

約数和(自身を除く): 78599440

約数列:

[1, 2, 4, 8, 16, 97, 194, 223, 233, 388, 446, 466, 776, 892, 932, 1552, 1784, 1864, 3568, 3728, 21631, 22601, 43262, 45202, 51959, 86524, 90404, 103918, 173048, 180808, 207836, 346096, 361616, 415672, 831344, 5040023, 10080046, 20160092, 40320184, 80640368]

約数ペア:

[(1, 80640368), (2, 40320184), (4, 20160092), (8, 10080046), (16, 5040023), (97, 831344), (194, 415672), (223, 361616), (233, 346096), (388, 207836), (446, 180808), (466, 173048), (776, 103918), (892, 90404), (932, 86524), (1552, 51959), (1784, 45202), (1864, 43262), (3568, 22601), (3728, 21631)]