80002820

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1\times {\mathrm{449}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 172368000

約数和(自身を除く): 92365180

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 151, 236, 295, 302, 449, 590, 604, 755, 898, 1180, 1510, 1796, 2245, 3020, 4490, 8909, 8980, 17818, 26491, 35636, 44545, 52982, 67799, 89090, 105964, 132455, 135598, 178180, 264910, 271196, 338995, 529820, 677990, 1355980, 4000141, 8000282, 16000564, 20000705, 40001410, 80002820]

約数ペア:

[(1, 80002820), (2, 40001410), (4, 20000705), (5, 16000564), (10, 8000282), (20, 4000141), (59, 1355980), (118, 677990), (151, 529820), (236, 338995), (295, 271196), (302, 264910), (449, 178180), (590, 135598), (604, 132455), (755, 105964), (898, 89090), (1180, 67799), (1510, 52982), (1796, 44545), (2245, 35636), (3020, 26491), (4490, 17818), (8909, 8980)]