778590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 2083536

約数和(自身を除く): 1304946

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 41, 45, 82, 90, 123, 205, 211, 246, 369, 410, 422, 615, 633, 738, 1055, 1230, 1266, 1845, 1899, 2110, 3165, 3690, 3798, 6330, 8651, 9495, 17302, 18990, 25953, 43255, 51906, 77859, 86510, 129765, 155718, 259530, 389295, 778590]

約数ペア:

[(1, 778590), (2, 389295), (3, 259530), (5, 155718), (6, 129765), (9, 86510), (10, 77859), (15, 51906), (18, 43255), (30, 25953), (41, 18990), (45, 17302), (82, 9495), (90, 8651), (123, 6330), (205, 3798), (211, 3690), (246, 3165), (369, 2110), (410, 1899), (422, 1845), (615, 1266), (633, 1230), (738, 1055)]