2017970120

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{209333}}^1$

素因数の和:209585

約数の個数: 32

約数和(自身を含む): 4559294520

約数和(自身を除く): 2541324400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 9640, 209333, 418666, 837332, 1046665, 1674664, 2093330, 4186660, 8373320, 50449253, 100898506, 201797012, 252246265, 403594024, 504492530, 1008985060, 2017970120]

約数ペア:

[(1, 2017970120), (2, 1008985060), (4, 504492530), (5, 403594024), (8, 252246265), (10, 201797012), (20, 100898506), (40, 50449253), (241, 8373320), (482, 4186660), (964, 2093330), (1205, 1674664), (1928, 1046665), (2410, 837332), (4820, 418666), (9640, 209333)]