73120640

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2657}}^1$

素因数の和:2719

約数の個数: 64

約数和(自身を含む): 178936560

約数和(自身を除く): 105815920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 320, 344, 430, 640, 688, 860, 1376, 1720, 2657, 2752, 3440, 5314, 5504, 6880, 10628, 13285, 13760, 21256, 26570, 27520, 42512, 53140, 85024, 106280, 114251, 170048, 212560, 228502, 340096, 425120, 457004, 571255, 850240, 914008, 1142510, 1700480, 1828016, 2285020, 3656032, 4570040, 7312064, 9140080, 14624128, 18280160, 36560320, 73120640]

約数ペア:

[(1, 73120640), (2, 36560320), (4, 18280160), (5, 14624128), (8, 9140080), (10, 7312064), (16, 4570040), (20, 3656032), (32, 2285020), (40, 1828016), (43, 1700480), (64, 1142510), (80, 914008), (86, 850240), (128, 571255), (160, 457004), (172, 425120), (215, 340096), (320, 228502), (344, 212560), (430, 170048), (640, 114251), (688, 106280), (860, 85024), (1376, 53140), (1720, 42512), (2657, 27520), (2752, 26570), (3440, 21256), (5314, 13760), (5504, 13285), (6880, 10628)]