8168420

素因数分解:

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

素因数の和:464

約数の個数: 48

約数和(自身を含む): 18733680

約数和(自身を除く): 10565260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 353, 356, 445, 706, 890, 1157, 1412, 1765, 1780, 2314, 3530, 4589, 4628, 5785, 7060, 9178, 11570, 18356, 22945, 23140, 31417, 45890, 62834, 91780, 125668, 157085, 314170, 408421, 628340, 816842, 1633684, 2042105, 4084210, 8168420]

約数ペア:

[(1, 8168420), (2, 4084210), (4, 2042105), (5, 1633684), (10, 816842), (13, 628340), (20, 408421), (26, 314170), (52, 157085), (65, 125668), (89, 91780), (130, 62834), (178, 45890), (260, 31417), (353, 23140), (356, 22945), (445, 18356), (706, 11570), (890, 9178), (1157, 7060), (1412, 5785), (1765, 4628), (1780, 4589), (2314, 3530)]