205355890

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{336649}}^1$

素因数の和:336717

約数の個数: 16

約数和(自身を含む): 375701400

約数和(自身を除く): 170345510

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 336649, 673298, 1683245, 3366490, 20535589, 41071178, 102677945, 205355890]

約数ペア:

[(1, 205355890), (2, 102677945), (5, 41071178), (10, 20535589), (61, 3366490), (122, 1683245), (305, 673298), (610, 336649)]