402799990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{4987}}^1$

素因数の和:5232

約数の個数: 32

約数和(自身を含む): 746643744

約数和(自身を除く): 343843754

約数列:

[1, 2, 5, 10, 41, 82, 197, 205, 394, 410, 985, 1970, 4987, 8077, 9974, 16154, 24935, 40385, 49870, 80770, 204467, 408934, 982439, 1022335, 1964878, 2044670, 4912195, 9824390, 40279999, 80559998, 201399995, 402799990]

約数ペア:

[(1, 402799990), (2, 201399995), (5, 80559998), (10, 40279999), (41, 9824390), (82, 4912195), (197, 2044670), (205, 1964878), (394, 1022335), (410, 982439), (985, 408934), (1970, 204467), (4987, 80770), (8077, 49870), (9974, 40385), (16154, 24935)]