20686430

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1697}}^1$

素因数の和:1780

約数の個数: 32

約数和(自身を含む): 39610944

約数和(自身を除く): 18924514

約数列:

[1, 2, 5, 10, 23, 46, 53, 106, 115, 230, 265, 530, 1219, 1697, 2438, 3394, 6095, 8485, 12190, 16970, 39031, 78062, 89941, 179882, 195155, 390310, 449705, 899410, 2068643, 4137286, 10343215, 20686430]

約数ペア:

[(1, 20686430), (2, 10343215), (5, 4137286), (10, 2068643), (23, 899410), (46, 449705), (53, 390310), (106, 195155), (115, 179882), (230, 89941), (265, 78062), (530, 39031), (1219, 16970), (1697, 12190), (2438, 8485), (3394, 6095)]