20119990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{577}}^1$

素因数の和:912

約数の個数: 32

約数和(自身を含む): 39701664

約数和(自身を除く): 19581674

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 317, 577, 634, 1154, 1585, 2885, 3170, 3487, 5770, 6347, 6974, 12694, 17435, 31735, 34870, 63470, 182909, 365818, 914545, 1829090, 2011999, 4023998, 10059995, 20119990]

約数ペア:

[(1, 20119990), (2, 10059995), (5, 4023998), (10, 2011999), (11, 1829090), (22, 914545), (55, 365818), (110, 182909), (317, 63470), (577, 34870), (634, 31735), (1154, 17435), (1585, 12694), (2885, 6974), (3170, 6347), (3487, 5770)]