861927664

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{487}}^1$

素因数の和:702

約数の個数: 80

約数和(自身を含む): 1843437568

約数和(自身を除く): 981509904

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 127, 134, 208, 254, 268, 487, 508, 536, 871, 974, 1016, 1072, 1651, 1742, 1948, 2032, 3302, 3484, 3896, 6331, 6604, 6968, 7792, 8509, 12662, 13208, 13936, 17018, 25324, 26416, 32629, 34036, 50648, 61849, 65258, 68072, 101296, 110617, 123698, 130516, 136144, 221234, 247396, 261032, 424177, 442468, 494792, 522064, 804037, 848354, 884936, 989584, 1608074, 1696708, 1769872, 3216148, 3393416, 4143883, 6432296, 6786832, 8287766, 12864592, 16575532, 33151064, 53870479, 66302128, 107740958, 215481916, 430963832, 861927664]

約数ペア:

[(1, 861927664), (2, 430963832), (4, 215481916), (8, 107740958), (13, 66302128), (16, 53870479), (26, 33151064), (52, 16575532), (67, 12864592), (104, 8287766), (127, 6786832), (134, 6432296), (208, 4143883), (254, 3393416), (268, 3216148), (487, 1769872), (508, 1696708), (536, 1608074), (871, 989584), (974, 884936), (1016, 848354), (1072, 804037), (1651, 522064), (1742, 494792), (1948, 442468), (2032, 424177), (3302, 261032), (3484, 247396), (3896, 221234), (6331, 136144), (6604, 130516), (6968, 123698), (7792, 110617), (8509, 101296), (12662, 68072), (13208, 65258), (13936, 61849), (17018, 50648), (25324, 34036), (26416, 32629)]