128219960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{433}}^1\times {\mathrm{673}}^1$

素因数の和:1128

約数の個数: 64

約数和(自身を含む): 315917280

約数和(自身を除く): 187697320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 433, 440, 673, 866, 1346, 1732, 2165, 2692, 3365, 3464, 4330, 4763, 5384, 6730, 7403, 8660, 9526, 13460, 14806, 17320, 19052, 23815, 26920, 29612, 37015, 38104, 47630, 59224, 74030, 95260, 148060, 190520, 291409, 296120, 582818, 1165636, 1457045, 2331272, 2914090, 3205499, 5828180, 6410998, 11656360, 12821996, 16027495, 25643992, 32054990, 64109980, 128219960]

約数ペア:

[(1, 128219960), (2, 64109980), (4, 32054990), (5, 25643992), (8, 16027495), (10, 12821996), (11, 11656360), (20, 6410998), (22, 5828180), (40, 3205499), (44, 2914090), (55, 2331272), (88, 1457045), (110, 1165636), (220, 582818), (433, 296120), (440, 291409), (673, 190520), (866, 148060), (1346, 95260), (1732, 74030), (2165, 59224), (2692, 47630), (3365, 38104), (3464, 37015), (4330, 29612), (4763, 26920), (5384, 23815), (6730, 19052), (7403, 17320), (8660, 14806), (9526, 13460)]