278951780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{373}}^1\times {\mathrm{613}}^1$

素因数の和:1056

約数の個数: 48

約数和(自身を含む): 597972144

約数和(自身を除く): 319020364

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 373, 610, 613, 746, 1220, 1226, 1492, 1865, 2452, 3065, 3730, 6130, 7460, 12260, 22753, 37393, 45506, 74786, 91012, 113765, 149572, 186965, 227530, 228649, 373930, 455060, 457298, 747860, 914596, 1143245, 2286490, 4572980, 13947589, 27895178, 55790356, 69737945, 139475890, 278951780]

約数ペア:

[(1, 278951780), (2, 139475890), (4, 69737945), (5, 55790356), (10, 27895178), (20, 13947589), (61, 4572980), (122, 2286490), (244, 1143245), (305, 914596), (373, 747860), (610, 457298), (613, 455060), (746, 373930), (1220, 228649), (1226, 227530), (1492, 186965), (1865, 149572), (2452, 113765), (3065, 91012), (3730, 74786), (6130, 45506), (7460, 37393), (12260, 22753)]