87128360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2789}}^1$

素因数の和:2882

約数の個数: 64

約数和(自身を含む): 216950400

約数和(自身を除く): 129822040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1420, 1562, 2789, 2840, 3124, 3905, 5578, 6248, 7810, 11156, 13945, 15620, 22312, 27890, 30679, 31240, 55780, 61358, 111560, 122716, 153395, 198019, 245432, 306790, 396038, 613580, 792076, 990095, 1227160, 1584152, 1980190, 2178209, 3960380, 4356418, 7920760, 8712836, 10891045, 17425672, 21782090, 43564180, 87128360]

約数ペア:

[(1, 87128360), (2, 43564180), (4, 21782090), (5, 17425672), (8, 10891045), (10, 8712836), (11, 7920760), (20, 4356418), (22, 3960380), (40, 2178209), (44, 1980190), (55, 1584152), (71, 1227160), (88, 990095), (110, 792076), (142, 613580), (220, 396038), (284, 306790), (355, 245432), (440, 198019), (568, 153395), (710, 122716), (781, 111560), (1420, 61358), (1562, 55780), (2789, 31240), (2840, 30679), (3124, 27890), (3905, 22312), (5578, 15620), (6248, 13945), (7810, 11156)]