72144640

素因数分解:

$2^8\times 5^1\times {\mathrm{157}}^1\times {\mathrm{359}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 174394080

約数和(自身を除く): 102249440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 256, 314, 320, 359, 628, 640, 718, 785, 1256, 1280, 1436, 1570, 1795, 2512, 2872, 3140, 3590, 5024, 5744, 6280, 7180, 10048, 11488, 12560, 14360, 20096, 22976, 25120, 28720, 40192, 45952, 50240, 56363, 57440, 91904, 100480, 112726, 114880, 200960, 225452, 229760, 281815, 450904, 459520, 563630, 901808, 1127260, 1803616, 2254520, 3607232, 4509040, 7214464, 9018080, 14428928, 18036160, 36072320, 72144640]

約数ペア:

[(1, 72144640), (2, 36072320), (4, 18036160), (5, 14428928), (8, 9018080), (10, 7214464), (16, 4509040), (20, 3607232), (32, 2254520), (40, 1803616), (64, 1127260), (80, 901808), (128, 563630), (157, 459520), (160, 450904), (256, 281815), (314, 229760), (320, 225452), (359, 200960), (628, 114880), (640, 112726), (718, 100480), (785, 91904), (1256, 57440), (1280, 56363), (1436, 50240), (1570, 45952), (1795, 40192), (2512, 28720), (2872, 25120), (3140, 22976), (3590, 20096), (5024, 14360), (5744, 12560), (6280, 11488), (7180, 10048)]