54389680

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7639}}^1$

素因数の和:7741

約数の個数: 40

約数和(自身を含む): 127893600

約数和(自身を除く): 73503920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 7639, 15278, 30556, 38195, 61112, 76390, 122224, 152780, 305560, 611120, 679871, 1359742, 2719484, 3399355, 5438968, 6798710, 10877936, 13597420, 27194840, 54389680]

約数ペア:

[(1, 54389680), (2, 27194840), (4, 13597420), (5, 10877936), (8, 6798710), (10, 5438968), (16, 3399355), (20, 2719484), (40, 1359742), (80, 679871), (89, 611120), (178, 305560), (356, 152780), (445, 122224), (712, 76390), (890, 61112), (1424, 38195), (1780, 30556), (3560, 15278), (7120, 7639)]