81712068

素因数分解:

$2^2\times 3^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1\times {\mathrm{349}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 194040000

約数和(自身を除く): 112327932

約数列:

[1, 2, 3, 4, 6, 12, 109, 179, 218, 327, 349, 358, 436, 537, 654, 698, 716, 1047, 1074, 1308, 1396, 2094, 2148, 4188, 19511, 38041, 39022, 58533, 62471, 76082, 78044, 114123, 117066, 124942, 152164, 187413, 228246, 234132, 249884, 374826, 456492, 749652, 6809339, 13618678, 20428017, 27237356, 40856034, 81712068]

約数ペア:

[(1, 81712068), (2, 40856034), (3, 27237356), (4, 20428017), (6, 13618678), (12, 6809339), (109, 749652), (179, 456492), (218, 374826), (327, 249884), (349, 234132), (358, 228246), (436, 187413), (537, 152164), (654, 124942), (698, 117066), (716, 114123), (1047, 78044), (1074, 76082), (1308, 62471), (1396, 58533), (2094, 39022), (2148, 38041), (4188, 19511)]