205991820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1144399}}^1$

素因数の和:1144414

約数の個数: 36

約数和(自身を含む): 624842400

約数和(自身を除く): 418850580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1144399, 2288798, 3433197, 4577596, 5721995, 6866394, 10299591, 11443990, 13732788, 17165985, 20599182, 22887980, 34331970, 41198364, 51497955, 68663940, 102995910, 205991820]

約数ペア:

[(1, 205991820), (2, 102995910), (3, 68663940), (4, 51497955), (5, 41198364), (6, 34331970), (9, 22887980), (10, 20599182), (12, 17165985), (15, 13732788), (18, 11443990), (20, 10299591), (30, 6866394), (36, 5721995), (45, 4577596), (60, 3433197), (90, 2288798), (180, 1144399)]