80681520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{887}}^1$

素因数の和:1282

約数の個数: 80

約数和(自身を含む): 251055360

約数和(自身を除く): 170373840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 379, 758, 887, 1137, 1516, 1774, 1895, 2274, 2661, 3032, 3548, 3790, 4435, 4548, 5322, 5685, 6064, 7096, 7580, 8870, 9096, 10644, 11370, 13305, 14192, 15160, 17740, 18192, 21288, 22740, 26610, 30320, 35480, 42576, 45480, 53220, 70960, 90960, 106440, 212880, 336173, 672346, 1008519, 1344692, 1680865, 2017038, 2689384, 3361730, 4034076, 5042595, 5378768, 6723460, 8068152, 10085190, 13446920, 16136304, 20170380, 26893840, 40340760, 80681520]

約数ペア:

[(1, 80681520), (2, 40340760), (3, 26893840), (4, 20170380), (5, 16136304), (6, 13446920), (8, 10085190), (10, 8068152), (12, 6723460), (15, 5378768), (16, 5042595), (20, 4034076), (24, 3361730), (30, 2689384), (40, 2017038), (48, 1680865), (60, 1344692), (80, 1008519), (120, 672346), (240, 336173), (379, 212880), (758, 106440), (887, 90960), (1137, 70960), (1516, 53220), (1774, 45480), (1895, 42576), (2274, 35480), (2661, 30320), (3032, 26610), (3548, 22740), (3790, 21288), (4435, 18192), (4548, 17740), (5322, 15160), (5685, 14192), (6064, 13305), (7096, 11370), (7580, 10644), (8870, 9096)]