40085890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 81430272

約数和(自身を除く): 41344382

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 71, 86, 101, 130, 142, 202, 215, 355, 430, 505, 559, 710, 923, 1010, 1118, 1313, 1846, 2626, 2795, 3053, 4343, 4615, 5590, 6106, 6565, 7171, 8686, 9230, 13130, 14342, 15265, 21715, 30530, 35855, 39689, 43430, 56459, 71710, 79378, 93223, 112918, 186446, 198445, 282295, 308353, 396890, 466115, 564590, 616706, 932230, 1541765, 3083530, 4008589, 8017178, 20042945, 40085890]

約数ペア:

[(1, 40085890), (2, 20042945), (5, 8017178), (10, 4008589), (13, 3083530), (26, 1541765), (43, 932230), (65, 616706), (71, 564590), (86, 466115), (101, 396890), (130, 308353), (142, 282295), (202, 198445), (215, 186446), (355, 112918), (430, 93223), (505, 79378), (559, 71710), (710, 56459), (923, 43430), (1010, 39689), (1118, 35855), (1313, 30530), (1846, 21715), (2626, 15265), (2795, 14342), (3053, 13130), (4343, 9230), (4615, 8686), (5590, 7171), (6106, 6565)]