1993180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{619}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 4999680

約数和(自身を除く): 3006500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 619, 644, 805, 1238, 1610, 2476, 3095, 3220, 4333, 6190, 8666, 12380, 14237, 17332, 21665, 28474, 43330, 56948, 71185, 86660, 99659, 142370, 199318, 284740, 398636, 498295, 996590, 1993180]

約数ペア:

[(1, 1993180), (2, 996590), (4, 498295), (5, 398636), (7, 284740), (10, 199318), (14, 142370), (20, 99659), (23, 86660), (28, 71185), (35, 56948), (46, 43330), (70, 28474), (92, 21665), (115, 17332), (140, 14237), (161, 12380), (230, 8666), (322, 6190), (460, 4333), (619, 3220), (644, 3095), (805, 2476), (1238, 1610)]