81543440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4877}}^1$

素因数の和:4920

約数の個数: 80

約数和(自身を含む): 217753920

約数和(自身を除く): 136210480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1520, 1672, 2090, 3344, 4180, 4877, 8360, 9754, 16720, 19508, 24385, 39016, 48770, 53647, 78032, 92663, 97540, 107294, 185326, 195080, 214588, 268235, 370652, 390160, 429176, 463315, 536470, 741304, 858352, 926630, 1019293, 1072940, 1482608, 1853260, 2038586, 2145880, 3706520, 4077172, 4291760, 5096465, 7413040, 8154344, 10192930, 16308688, 20385860, 40771720, 81543440]

約数ペア:

[(1, 81543440), (2, 40771720), (4, 20385860), (5, 16308688), (8, 10192930), (10, 8154344), (11, 7413040), (16, 5096465), (19, 4291760), (20, 4077172), (22, 3706520), (38, 2145880), (40, 2038586), (44, 1853260), (55, 1482608), (76, 1072940), (80, 1019293), (88, 926630), (95, 858352), (110, 741304), (152, 536470), (176, 463315), (190, 429176), (209, 390160), (220, 370652), (304, 268235), (380, 214588), (418, 195080), (440, 185326), (760, 107294), (836, 97540), (880, 92663), (1045, 78032), (1520, 53647), (1672, 48770), (2090, 39016), (3344, 24385), (4180, 19508), (4877, 16720), (8360, 9754)]