128280980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{377297}}^1$

素因数の和:377323

約数の個数: 24

約数和(自身を含む): 285237288

約数和(自身を除く): 156956308

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 377297, 754594, 1509188, 1886485, 3772970, 6414049, 7545940, 12828098, 25656196, 32070245, 64140490, 128280980]

約数ペア:

[(1, 128280980), (2, 64140490), (4, 32070245), (5, 25656196), (10, 12828098), (17, 7545940), (20, 6414049), (34, 3772970), (68, 1886485), (85, 1509188), (170, 754594), (340, 377297)]