247904920

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{9491}}^1$

素因数の和:10155

約数の個数: 32

約数和(自身を含む): 558699120

約数和(自身を除く): 310794200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2612, 3265, 5224, 6530, 9491, 13060, 18982, 26120, 37964, 47455, 75928, 94910, 189820, 379640, 6197623, 12395246, 24790492, 30988115, 49580984, 61976230, 123952460, 247904920]

約数ペア:

[(1, 247904920), (2, 123952460), (4, 61976230), (5, 49580984), (8, 30988115), (10, 24790492), (20, 12395246), (40, 6197623), (653, 379640), (1306, 189820), (2612, 94910), (3265, 75928), (5224, 47455), (6530, 37964), (9491, 26120), (13060, 18982)]