280381670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:501

約数の個数: 64

約数和(自身を含む): 553512960

約数和(自身を除く): 273131290

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 181, 190, 263, 310, 362, 526, 589, 905, 1178, 1315, 1810, 2630, 2945, 3439, 4997, 5611, 5890, 6878, 8153, 9994, 11222, 16306, 17195, 24985, 28055, 34390, 40765, 47603, 49970, 56110, 81530, 95206, 106609, 154907, 213218, 238015, 309814, 476030, 533045, 774535, 904457, 1066090, 1475693, 1549070, 1808914, 2951386, 4522285, 7378465, 9044570, 14756930, 28038167, 56076334, 140190835, 280381670]

約数ペア:

[(1, 280381670), (2, 140190835), (5, 56076334), (10, 28038167), (19, 14756930), (31, 9044570), (38, 7378465), (62, 4522285), (95, 2951386), (155, 1808914), (181, 1549070), (190, 1475693), (263, 1066090), (310, 904457), (362, 774535), (526, 533045), (589, 476030), (905, 309814), (1178, 238015), (1315, 213218), (1810, 154907), (2630, 106609), (2945, 95206), (3439, 81530), (4997, 56110), (5611, 49970), (5890, 47603), (6878, 40765), (8153, 34390), (9994, 28055), (11222, 24985), (16306, 17195)]