1999074440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{787}}^1$

素因数の和:1083

約数の個数: 128

約数和(自身を含む): 5147089920

約数和(自身を除く): 3148015480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 251, 253, 440, 460, 502, 506, 787, 920, 1004, 1012, 1255, 1265, 1574, 2008, 2024, 2510, 2530, 2761, 3148, 3935, 5020, 5060, 5522, 5773, 6296, 7870, 8657, 10040, 10120, 11044, 11546, 13805, 15740, 17314, 18101, 22088, 23092, 27610, 28865, 31480, 34628, 36202, 43285, 46184, 55220, 57730, 63503, 69256, 72404, 86570, 90505, 110440, 115460, 127006, 144808, 173140, 181010, 197537, 199111, 230920, 254012, 317515, 346280, 362020, 395074, 398222, 508024, 635030, 724040, 790148, 796444, 987685, 995555, 1270060, 1580296, 1592888, 1975370, 1991110, 2172907, 2540120, 3950740, 3982220, 4345814, 4543351, 7901480, 7964440, 8691628, 9086702, 10864535, 17383256, 18173404, 21729070, 22716755, 36346808, 43458140, 45433510, 49976861, 86916280, 90867020, 99953722, 181734040, 199907444, 249884305, 399814888, 499768610, 999537220, 1999074440]

約数ペア:

[(1, 1999074440), (2, 999537220), (4, 499768610), (5, 399814888), (8, 249884305), (10, 199907444), (11, 181734040), (20, 99953722), (22, 90867020), (23, 86916280), (40, 49976861), (44, 45433510), (46, 43458140), (55, 36346808), (88, 22716755), (92, 21729070), (110, 18173404), (115, 17383256), (184, 10864535), (220, 9086702), (230, 8691628), (251, 7964440), (253, 7901480), (440, 4543351), (460, 4345814), (502, 3982220), (506, 3950740), (787, 2540120), (920, 2172907), (1004, 1991110), (1012, 1975370), (1255, 1592888), (1265, 1580296), (1574, 1270060), (2008, 995555), (2024, 987685), (2510, 796444), (2530, 790148), (2761, 724040), (3148, 635030), (3935, 508024), (5020, 398222), (5060, 395074), (5522, 362020), (5773, 346280), (6296, 317515), (7870, 254012), (8657, 230920), (10040, 199111), (10120, 197537), (11044, 181010), (11546, 173140), (13805, 144808), (15740, 127006), (17314, 115460), (18101, 110440), (22088, 90505), (23092, 86570), (27610, 72404), (28865, 69256), (31480, 63503), (34628, 57730), (36202, 55220), (43285, 46184)]