65391920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3911}}^1$

素因数の和:3954

約数の個数: 80

約数和(自身を含む): 174631680

約数和(自身を除く): 109239760

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, 3911, 4180, 7822, 8360, 15644, 16720, 19555, 31288, 39110, 43021, 62576, 74309, 78220, 86042, 148618, 156440, 172084, 215105, 297236, 312880, 344168, 371545, 430210, 594472, 688336, 743090, 817399, 860420, 1188944, 1486180, 1634798, 1720840, 2972360, 3269596, 3441680, 4086995, 5944720, 6539192, 8173990, 13078384, 16347980, 32695960, 65391920]

約数ペア:

[(1, 65391920), (2, 32695960), (4, 16347980), (5, 13078384), (8, 8173990), (10, 6539192), (11, 5944720), (16, 4086995), (19, 3441680), (20, 3269596), (22, 2972360), (38, 1720840), (40, 1634798), (44, 1486180), (55, 1188944), (76, 860420), (80, 817399), (88, 743090), (95, 688336), (110, 594472), (152, 430210), (176, 371545), (190, 344168), (209, 312880), (220, 297236), (304, 215105), (380, 172084), (418, 156440), (440, 148618), (760, 86042), (836, 78220), (880, 74309), (1045, 62576), (1520, 43021), (1672, 39110), (2090, 31288), (3344, 19555), (3911, 16720), (4180, 15644), (7822, 8360)]