128872640

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2383}}^1$

素因数の和:2426

約数の個数: 84

約数和(自身を含む): 332439264

約数和(自身を除く): 203566624

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 169, 208, 260, 320, 338, 416, 520, 676, 832, 845, 1040, 1352, 1690, 2080, 2383, 2704, 3380, 4160, 4766, 5408, 6760, 9532, 10816, 11915, 13520, 19064, 23830, 27040, 30979, 38128, 47660, 54080, 61958, 76256, 95320, 123916, 152512, 154895, 190640, 247832, 309790, 381280, 402727, 495664, 619580, 762560, 805454, 991328, 1239160, 1610908, 1982656, 2013635, 2478320, 3221816, 4027270, 4956640, 6443632, 8054540, 9913280, 12887264, 16109080, 25774528, 32218160, 64436320, 128872640]

約数ペア:

[(1, 128872640), (2, 64436320), (4, 32218160), (5, 25774528), (8, 16109080), (10, 12887264), (13, 9913280), (16, 8054540), (20, 6443632), (26, 4956640), (32, 4027270), (40, 3221816), (52, 2478320), (64, 2013635), (65, 1982656), (80, 1610908), (104, 1239160), (130, 991328), (160, 805454), (169, 762560), (208, 619580), (260, 495664), (320, 402727), (338, 381280), (416, 309790), (520, 247832), (676, 190640), (832, 154895), (845, 152512), (1040, 123916), (1352, 95320), (1690, 76256), (2080, 61958), (2383, 54080), (2704, 47660), (3380, 38128), (4160, 30979), (4766, 27040), (5408, 23830), (6760, 19064), (9532, 13520), (10816, 11915)]