77897872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{857}}^1$

素因数の和:920

約数の個数: 80

約数和(自身を含む): 178738560

約数和(自身を除く): 100840688

約数列:

[1, 2, 4, 8, 13, 16, 19, 23, 26, 38, 46, 52, 76, 92, 104, 152, 184, 208, 247, 299, 304, 368, 437, 494, 598, 857, 874, 988, 1196, 1714, 1748, 1976, 2392, 3428, 3496, 3952, 4784, 5681, 6856, 6992, 11141, 11362, 13712, 16283, 19711, 22282, 22724, 32566, 39422, 44564, 45448, 65132, 78844, 89128, 90896, 130264, 157688, 178256, 211679, 256243, 260528, 315376, 374509, 423358, 512486, 749018, 846716, 1024972, 1498036, 1693432, 2049944, 2996072, 3386864, 4099888, 4868617, 5992144, 9737234, 19474468, 38948936, 77897872]

約数ペア:

[(1, 77897872), (2, 38948936), (4, 19474468), (8, 9737234), (13, 5992144), (16, 4868617), (19, 4099888), (23, 3386864), (26, 2996072), (38, 2049944), (46, 1693432), (52, 1498036), (76, 1024972), (92, 846716), (104, 749018), (152, 512486), (184, 423358), (208, 374509), (247, 315376), (299, 260528), (304, 256243), (368, 211679), (437, 178256), (494, 157688), (598, 130264), (857, 90896), (874, 89128), (988, 78844), (1196, 65132), (1714, 45448), (1748, 44564), (1976, 39422), (2392, 32566), (3428, 22724), (3496, 22282), (3952, 19711), (4784, 16283), (5681, 13712), (6856, 11362), (6992, 11141)]