289978910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1$

素因数の和:533

約数の個数: 64

約数和(自身を含む): 578067840

約数和(自身を除く): 288088930

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 89, 130, 142, 178, 353, 355, 445, 706, 710, 890, 923, 1157, 1765, 1846, 2314, 3530, 4589, 4615, 5785, 6319, 9178, 9230, 11570, 12638, 22945, 25063, 31417, 31595, 45890, 50126, 62834, 63190, 82147, 125315, 157085, 164294, 250630, 314170, 325819, 408421, 410735, 651638, 816842, 821470, 1629095, 2042105, 2230607, 3258190, 4084210, 4461214, 11153035, 22306070, 28997891, 57995782, 144989455, 289978910]

約数ペア:

[(1, 289978910), (2, 144989455), (5, 57995782), (10, 28997891), (13, 22306070), (26, 11153035), (65, 4461214), (71, 4084210), (89, 3258190), (130, 2230607), (142, 2042105), (178, 1629095), (353, 821470), (355, 816842), (445, 651638), (706, 410735), (710, 408421), (890, 325819), (923, 314170), (1157, 250630), (1765, 164294), (1846, 157085), (2314, 125315), (3530, 82147), (4589, 63190), (4615, 62834), (5785, 50126), (6319, 45890), (9178, 31595), (9230, 31417), (11570, 25063), (12638, 22945)]