128835580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{6397}}^1$

素因数の和:6478

約数の個数: 48

約数和(自身を含む): 290213280

約数和(自身を除く): 161377700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 530, 1007, 1060, 2014, 4028, 5035, 6397, 10070, 12794, 20140, 25588, 31985, 63970, 121543, 127940, 243086, 339041, 486172, 607715, 678082, 1215430, 1356164, 1695205, 2430860, 3390410, 6441779, 6780820, 12883558, 25767116, 32208895, 64417790, 128835580]

約数ペア:

[(1, 128835580), (2, 64417790), (4, 32208895), (5, 25767116), (10, 12883558), (19, 6780820), (20, 6441779), (38, 3390410), (53, 2430860), (76, 1695205), (95, 1356164), (106, 1215430), (190, 678082), (212, 607715), (265, 486172), (380, 339041), (530, 243086), (1007, 127940), (1060, 121543), (2014, 63970), (4028, 31985), (5035, 25588), (6397, 20140), (10070, 12794)]