256639860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{719}}^1$

素因数の和:1398

約数の個数: 96

約数和(自身を含む): 800755200

約数和(自身を除く): 544115340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 661, 719, 1322, 1438, 1983, 2157, 2644, 2876, 3305, 3595, 3966, 4314, 5949, 6471, 6610, 7190, 7932, 8628, 9915, 10785, 11898, 12942, 13220, 14380, 17847, 19413, 19830, 21570, 23796, 25884, 29745, 32355, 35694, 38826, 39660, 43140, 59490, 64710, 71388, 77652, 89235, 97065, 118980, 129420, 178470, 194130, 356940, 388260, 475259, 950518, 1425777, 1901036, 2376295, 2851554, 4277331, 4752590, 5703108, 7128885, 8554662, 9505180, 12831993, 14257770, 17109324, 21386655, 25663986, 28515540, 42773310, 51327972, 64159965, 85546620, 128319930, 256639860]

約数ペア:

[(1, 256639860), (2, 128319930), (3, 85546620), (4, 64159965), (5, 51327972), (6, 42773310), (9, 28515540), (10, 25663986), (12, 21386655), (15, 17109324), (18, 14257770), (20, 12831993), (27, 9505180), (30, 8554662), (36, 7128885), (45, 5703108), (54, 4752590), (60, 4277331), (90, 2851554), (108, 2376295), (135, 1901036), (180, 1425777), (270, 950518), (540, 475259), (661, 388260), (719, 356940), (1322, 194130), (1438, 178470), (1983, 129420), (2157, 118980), (2644, 97065), (2876, 89235), (3305, 77652), (3595, 71388), (3966, 64710), (4314, 59490), (5949, 43140), (6471, 39660), (6610, 38826), (7190, 35694), (7932, 32355), (8628, 29745), (9915, 25884), (10785, 23796), (11898, 21570), (12942, 19830), (13220, 19413), (14380, 17847)]