1157840

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1$

素因数の和:407

約数の個数: 40

約数和(自身を含む): 2765448

約数和(自身を除く): 1607608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 353, 410, 656, 706, 820, 1412, 1640, 1765, 2824, 3280, 3530, 5648, 7060, 14120, 14473, 28240, 28946, 57892, 72365, 115784, 144730, 231568, 289460, 578920, 1157840]

約数ペア:

[(1, 1157840), (2, 578920), (4, 289460), (5, 231568), (8, 144730), (10, 115784), (16, 72365), (20, 57892), (40, 28946), (41, 28240), (80, 14473), (82, 14120), (164, 7060), (205, 5648), (328, 3530), (353, 3280), (410, 2824), (656, 1765), (706, 1640), (820, 1412)]