20403410

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{281}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 37826352

約数和(自身を除く): 17422942

約数列:

[1, 2, 5, 10, 53, 106, 137, 265, 274, 281, 530, 562, 685, 1370, 1405, 2810, 7261, 14522, 14893, 29786, 36305, 38497, 72610, 74465, 76994, 148930, 192485, 384970, 2040341, 4080682, 10201705, 20403410]

約数ペア:

[(1, 20403410), (2, 10201705), (5, 4080682), (10, 2040341), (53, 384970), (106, 192485), (137, 148930), (265, 76994), (274, 74465), (281, 72610), (530, 38497), (562, 36305), (685, 29786), (1370, 14893), (1405, 14522), (2810, 7261)]