2019126920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{4871}}^1$

素因数の和:5166

約数の個数: 64

約数和(自身を含む): 4668935040

約数和(自身を除く): 2649808120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 241, 344, 430, 482, 860, 964, 1205, 1720, 1928, 2410, 4820, 4871, 9640, 9742, 10363, 19484, 20726, 24355, 38968, 41452, 48710, 51815, 82904, 97420, 103630, 194840, 207260, 209453, 414520, 418906, 837812, 1047265, 1173911, 1675624, 2094530, 2347822, 4189060, 4695644, 5869555, 8378120, 9391288, 11739110, 23478220, 46956440, 50478173, 100956346, 201912692, 252390865, 403825384, 504781730, 1009563460, 2019126920]

約数ペア:

[(1, 2019126920), (2, 1009563460), (4, 504781730), (5, 403825384), (8, 252390865), (10, 201912692), (20, 100956346), (40, 50478173), (43, 46956440), (86, 23478220), (172, 11739110), (215, 9391288), (241, 8378120), (344, 5869555), (430, 4695644), (482, 4189060), (860, 2347822), (964, 2094530), (1205, 1675624), (1720, 1173911), (1928, 1047265), (2410, 837812), (4820, 418906), (4871, 414520), (9640, 209453), (9742, 207260), (10363, 194840), (19484, 103630), (20726, 97420), (24355, 82904), (38968, 51815), (41452, 48710)]