77748988

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 150747520

約数和(自身を除く): 72998532

約数列:

[1, 2, 4, 19, 37, 38, 43, 74, 76, 86, 148, 172, 643, 703, 817, 1286, 1406, 1591, 1634, 2572, 2812, 3182, 3268, 6364, 12217, 23791, 24434, 27649, 30229, 47582, 48868, 55298, 60458, 95164, 110596, 120916, 452029, 525331, 904058, 1023013, 1050662, 1808116, 2046026, 2101324, 4092052, 19437247, 38874494, 77748988]

約数ペア:

[(1, 77748988), (2, 38874494), (4, 19437247), (19, 4092052), (37, 2101324), (38, 2046026), (43, 1808116), (74, 1050662), (76, 1023013), (86, 904058), (148, 525331), (172, 452029), (643, 120916), (703, 110596), (817, 95164), (1286, 60458), (1406, 55298), (1591, 48868), (1634, 47582), (2572, 30229), (2812, 27649), (3182, 24434), (3268, 23791), (6364, 12217)]