1321820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 2993760

約数和(自身を除く): 1671940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 53, 58, 86, 106, 116, 145, 172, 212, 215, 265, 290, 430, 530, 580, 860, 1060, 1247, 1537, 2279, 2494, 3074, 4558, 4988, 6148, 6235, 7685, 9116, 11395, 12470, 15370, 22790, 24940, 30740, 45580, 66091, 132182, 264364, 330455, 660910, 1321820]

約数ペア:

[(1, 1321820), (2, 660910), (4, 330455), (5, 264364), (10, 132182), (20, 66091), (29, 45580), (43, 30740), (53, 24940), (58, 22790), (86, 15370), (106, 12470), (116, 11395), (145, 9116), (172, 7685), (212, 6235), (215, 6148), (265, 4988), (290, 4558), (430, 3074), (530, 2494), (580, 2279), (860, 1537), (1060, 1247)]