19644160

素因数分解:

$2^8\times 5^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 47829600

約数和(自身を除く): 28185440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 149, 160, 206, 256, 298, 320, 412, 515, 596, 640, 745, 824, 1030, 1192, 1280, 1490, 1648, 2060, 2384, 2980, 3296, 4120, 4768, 5960, 6592, 8240, 9536, 11920, 13184, 15347, 16480, 19072, 23840, 26368, 30694, 32960, 38144, 47680, 61388, 65920, 76735, 95360, 122776, 131840, 153470, 190720, 245552, 306940, 491104, 613880, 982208, 1227760, 1964416, 2455520, 3928832, 4911040, 9822080, 19644160]

約数ペア:

[(1, 19644160), (2, 9822080), (4, 4911040), (5, 3928832), (8, 2455520), (10, 1964416), (16, 1227760), (20, 982208), (32, 613880), (40, 491104), (64, 306940), (80, 245552), (103, 190720), (128, 153470), (149, 131840), (160, 122776), (206, 95360), (256, 76735), (298, 65920), (320, 61388), (412, 47680), (515, 38144), (596, 32960), (640, 30694), (745, 26368), (824, 23840), (1030, 19072), (1192, 16480), (1280, 15347), (1490, 13184), (1648, 11920), (2060, 9536), (2384, 8240), (2980, 6592), (3296, 5960), (4120, 4768)]