78694280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2213}}^1$

素因数の和:2358

約数の個数: 64

約数和(自身を含む): 204042240

約数和(自身を除く): 125347960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 127, 140, 254, 280, 508, 635, 889, 1016, 1270, 1778, 2213, 2540, 3556, 4426, 4445, 5080, 7112, 8852, 8890, 11065, 15491, 17704, 17780, 22130, 30982, 35560, 44260, 61964, 77455, 88520, 123928, 154910, 281051, 309820, 562102, 619640, 1124204, 1405255, 1967357, 2248408, 2810510, 3934714, 5621020, 7869428, 9836785, 11242040, 15738856, 19673570, 39347140, 78694280]

約数ペア:

[(1, 78694280), (2, 39347140), (4, 19673570), (5, 15738856), (7, 11242040), (8, 9836785), (10, 7869428), (14, 5621020), (20, 3934714), (28, 2810510), (35, 2248408), (40, 1967357), (56, 1405255), (70, 1124204), (127, 619640), (140, 562102), (254, 309820), (280, 281051), (508, 154910), (635, 123928), (889, 88520), (1016, 77455), (1270, 61964), (1778, 44260), (2213, 35560), (2540, 30982), (3556, 22130), (4426, 17780), (4445, 17704), (5080, 15491), (7112, 11065), (8852, 8890)]