728441380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1916951}}^1$

素因数の和:1916979

約数の個数: 24

約数和(自身を含む): 1610239680

約数和(自身を除く): 881798300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1916951, 3833902, 7667804, 9584755, 19169510, 36422069, 38339020, 72844138, 145688276, 182110345, 364220690, 728441380]

約数ペア:

[(1, 728441380), (2, 364220690), (4, 182110345), (5, 145688276), (10, 72844138), (19, 38339020), (20, 36422069), (38, 19169510), (76, 9584755), (95, 7667804), (190, 3833902), (380, 1916951)]