1999004

素因数分解:

$2^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:103

約数の個数: 48

約数和(自身を含む): 4300800

約数和(自身を除く): 2301796

約数列:

[1, 2, 4, 7, 14, 28, 31, 47, 49, 62, 94, 98, 124, 188, 196, 217, 329, 343, 434, 658, 686, 868, 1316, 1372, 1457, 1519, 2303, 2914, 3038, 4606, 5828, 6076, 9212, 10199, 10633, 16121, 20398, 21266, 32242, 40796, 42532, 64484, 71393, 142786, 285572, 499751, 999502, 1999004]

約数ペア:

[(1, 1999004), (2, 999502), (4, 499751), (7, 285572), (14, 142786), (28, 71393), (31, 64484), (47, 42532), (49, 40796), (62, 32242), (94, 21266), (98, 20398), (124, 16121), (188, 10633), (196, 10199), (217, 9212), (329, 6076), (343, 5828), (434, 4606), (658, 3038), (686, 2914), (868, 2303), (1316, 1519), (1372, 1457)]