19910670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2687}}^1$

素因数の和:2729

約数の個数: 64

約数和(自身を含む): 54190080

約数和(自身を除く): 34279410

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 390, 494, 570, 741, 1235, 1482, 2470, 2687, 3705, 5374, 7410, 8061, 13435, 16122, 26870, 34931, 40305, 51053, 69862, 80610, 102106, 104793, 153159, 174655, 209586, 255265, 306318, 349310, 510530, 523965, 663689, 765795, 1047930, 1327378, 1531590, 1991067, 3318445, 3982134, 6636890, 9955335, 19910670]

約数ペア:

[(1, 19910670), (2, 9955335), (3, 6636890), (5, 3982134), (6, 3318445), (10, 1991067), (13, 1531590), (15, 1327378), (19, 1047930), (26, 765795), (30, 663689), (38, 523965), (39, 510530), (57, 349310), (65, 306318), (78, 255265), (95, 209586), (114, 174655), (130, 153159), (190, 104793), (195, 102106), (247, 80610), (285, 69862), (390, 51053), (494, 40305), (570, 34931), (741, 26870), (1235, 16122), (1482, 13435), (2470, 8061), (2687, 7410), (3705, 5374)]