2813320

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1153}}^1$

素因数の和:1225

約数の個数: 32

約数和(自身を含む): 6439320

約数和(自身を除く): 3626000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1153, 1220, 2306, 2440, 4612, 5765, 9224, 11530, 23060, 46120, 70333, 140666, 281332, 351665, 562664, 703330, 1406660, 2813320]

約数ペア:

[(1, 2813320), (2, 1406660), (4, 703330), (5, 562664), (8, 351665), (10, 281332), (20, 140666), (40, 70333), (61, 46120), (122, 23060), (244, 11530), (305, 9224), (488, 5765), (610, 4612), (1153, 2440), (1220, 2306)]