90231040

素因数分解:

$2^8\times 5^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:627

約数の個数: 72

約数和(自身を含む): 217992600

約数和(自身を除く): 127761560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 256, 314, 320, 449, 628, 640, 785, 898, 1256, 1280, 1570, 1796, 2245, 2512, 3140, 3592, 4490, 5024, 6280, 7184, 8980, 10048, 12560, 14368, 17960, 20096, 25120, 28736, 35920, 40192, 50240, 57472, 70493, 71840, 100480, 114944, 140986, 143680, 200960, 281972, 287360, 352465, 563944, 574720, 704930, 1127888, 1409860, 2255776, 2819720, 4511552, 5639440, 9023104, 11278880, 18046208, 22557760, 45115520, 90231040]

約数ペア:

[(1, 90231040), (2, 45115520), (4, 22557760), (5, 18046208), (8, 11278880), (10, 9023104), (16, 5639440), (20, 4511552), (32, 2819720), (40, 2255776), (64, 1409860), (80, 1127888), (128, 704930), (157, 574720), (160, 563944), (256, 352465), (314, 287360), (320, 281972), (449, 200960), (628, 143680), (640, 140986), (785, 114944), (898, 100480), (1256, 71840), (1280, 70493), (1570, 57472), (1796, 50240), (2245, 40192), (2512, 35920), (3140, 28736), (3592, 25120), (4490, 20096), (5024, 17960), (6280, 14368), (7184, 12560), (8980, 10048)]