19395860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{673}}^1$

素因数の和:824

約数の個数: 48

約数和(自身を含む): 44839872

約数和(自身を除く): 25444012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 131, 220, 262, 524, 655, 673, 1310, 1346, 1441, 2620, 2692, 2882, 3365, 5764, 6730, 7205, 7403, 13460, 14410, 14806, 28820, 29612, 37015, 74030, 88163, 148060, 176326, 352652, 440815, 881630, 969793, 1763260, 1939586, 3879172, 4848965, 9697930, 19395860]

約数ペア:

[(1, 19395860), (2, 9697930), (4, 4848965), (5, 3879172), (10, 1939586), (11, 1763260), (20, 969793), (22, 881630), (44, 440815), (55, 352652), (110, 176326), (131, 148060), (220, 88163), (262, 74030), (524, 37015), (655, 29612), (673, 28820), (1310, 14806), (1346, 14410), (1441, 13460), (2620, 7403), (2692, 7205), (2882, 6730), (3365, 5764)]