77821720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{102397}}^1$

素因数の和:102427

約数の個数: 32

約数和(自身を含む): 184316400

約数和(自身を除く): 106494680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 102397, 204794, 409588, 511985, 819176, 1023970, 1945543, 2047940, 3891086, 4095880, 7782172, 9727715, 15564344, 19455430, 38910860, 77821720]

約数ペア:

[(1, 77821720), (2, 38910860), (4, 19455430), (5, 15564344), (8, 9727715), (10, 7782172), (19, 4095880), (20, 3891086), (38, 2047940), (40, 1945543), (76, 1023970), (95, 819176), (152, 511985), (190, 409588), (380, 204794), (760, 102397)]