990207712

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{13759}}^1$

素因数の和:13955

約数の個数: 48

約数和(自身を含む): 2111719680

約数和(自身を除く): 1121511968

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 173, 208, 346, 416, 692, 1384, 2249, 2768, 4498, 5536, 8996, 13759, 17992, 27518, 35984, 55036, 71968, 110072, 178867, 220144, 357734, 440288, 715468, 1430936, 2380307, 2861872, 4760614, 5723744, 9521228, 19042456, 30943991, 38084912, 61887982, 76169824, 123775964, 247551928, 495103856, 990207712]

約数ペア:

[(1, 990207712), (2, 495103856), (4, 247551928), (8, 123775964), (13, 76169824), (16, 61887982), (26, 38084912), (32, 30943991), (52, 19042456), (104, 9521228), (173, 5723744), (208, 4760614), (346, 2861872), (416, 2380307), (692, 1430936), (1384, 715468), (2249, 440288), (2768, 357734), (4498, 220144), (5536, 178867), (8996, 110072), (13759, 71968), (17992, 55036), (27518, 35984)]