20038130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9871}}^1$

素因数の和:9914

約数の個数: 32

約数和(自身を含む): 42647040

約数和(自身を除く): 22608910

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 9871, 19742, 49355, 69097, 98710, 138194, 286259, 345485, 572518, 690970, 1431295, 2003813, 2862590, 4007626, 10019065, 20038130]

約数ペア:

[(1, 20038130), (2, 10019065), (5, 4007626), (7, 2862590), (10, 2003813), (14, 1431295), (29, 690970), (35, 572518), (58, 345485), (70, 286259), (145, 138194), (203, 98710), (290, 69097), (406, 49355), (1015, 19742), (2030, 9871)]