72787760

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10223}}^1$

素因数の和:10325

約数の個数: 40

約数和(自身を含む): 171149760

約数和(自身を除く): 98362000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 10223, 20446, 40892, 51115, 81784, 102230, 163568, 204460, 408920, 817840, 909847, 1819694, 3639388, 4549235, 7278776, 9098470, 14557552, 18196940, 36393880, 72787760]

約数ペア:

[(1, 72787760), (2, 36393880), (4, 18196940), (5, 14557552), (8, 9098470), (10, 7278776), (16, 4549235), (20, 3639388), (40, 1819694), (80, 909847), (89, 817840), (178, 408920), (356, 204460), (445, 163568), (712, 102230), (890, 81784), (1424, 51115), (1780, 40892), (3560, 20446), (7120, 10223)]