20180875984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{281}}^1\times {\mathrm{1153}}^1$

素因数の和:1688

約数の個数: 80

約数和(自身を含む): 41765429520

約数和(自身を除く): 21584553536

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 229, 272, 281, 458, 562, 916, 1124, 1153, 1832, 2248, 2306, 3664, 3893, 4496, 4612, 4777, 7786, 9224, 9554, 15572, 18448, 19108, 19601, 31144, 38216, 39202, 62288, 64349, 76432, 78404, 128698, 156808, 257396, 264037, 313616, 323993, 514792, 528074, 647986, 1029584, 1056148, 1093933, 1295972, 2112296, 2187866, 2591944, 4224592, 4375732, 4488629, 5183888, 5507881, 8751464, 8977258, 11015762, 17502928, 17954516, 22031524, 35909032, 44063048, 71818064, 74194397, 88126096, 148388794, 296777588, 593555176, 1187110352, 1261304749, 2522609498, 5045218996, 10090437992, 20180875984]

約数ペア:

[(1, 20180875984), (2, 10090437992), (4, 5045218996), (8, 2522609498), (16, 1261304749), (17, 1187110352), (34, 593555176), (68, 296777588), (136, 148388794), (229, 88126096), (272, 74194397), (281, 71818064), (458, 44063048), (562, 35909032), (916, 22031524), (1124, 17954516), (1153, 17502928), (1832, 11015762), (2248, 8977258), (2306, 8751464), (3664, 5507881), (3893, 5183888), (4496, 4488629), (4612, 4375732), (4777, 4224592), (7786, 2591944), (9224, 2187866), (9554, 2112296), (15572, 1295972), (18448, 1093933), (19108, 1056148), (19601, 1029584), (31144, 647986), (38216, 528074), (39202, 514792), (62288, 323993), (64349, 313616), (76432, 264037), (78404, 257396), (128698, 156808)]