87409520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1399}}^1$

素因数の和:1494

約数の個数: 80

約数和(自身を含む): 224985600

約数和(自身を除く): 137576080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 568, 710, 781, 880, 1136, 1399, 1420, 1562, 2798, 2840, 3124, 3905, 5596, 5680, 6248, 6995, 7810, 11192, 12496, 13990, 15389, 15620, 22384, 27980, 30778, 31240, 55960, 61556, 62480, 76945, 99329, 111920, 123112, 153890, 198658, 246224, 307780, 397316, 496645, 615560, 794632, 993290, 1092619, 1231120, 1589264, 1986580, 2185238, 3973160, 4370476, 5463095, 7946320, 8740952, 10926190, 17481904, 21852380, 43704760, 87409520]

約数ペア:

[(1, 87409520), (2, 43704760), (4, 21852380), (5, 17481904), (8, 10926190), (10, 8740952), (11, 7946320), (16, 5463095), (20, 4370476), (22, 3973160), (40, 2185238), (44, 1986580), (55, 1589264), (71, 1231120), (80, 1092619), (88, 993290), (110, 794632), (142, 615560), (176, 496645), (220, 397316), (284, 307780), (355, 246224), (440, 198658), (568, 153890), (710, 123112), (781, 111920), (880, 99329), (1136, 76945), (1399, 62480), (1420, 61556), (1562, 55960), (2798, 31240), (2840, 30778), (3124, 27980), (3905, 22384), (5596, 15620), (5680, 15389), (6248, 13990), (6995, 12496), (7810, 11192)]