2489912560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:447

約数の個数: 120

約数和(自身を含む): 6050706480

約数和(自身を除く): 3560793920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 139, 155, 233, 248, 278, 310, 466, 496, 556, 620, 695, 932, 961, 1112, 1165, 1240, 1390, 1864, 1922, 2224, 2330, 2480, 2780, 3728, 3844, 4309, 4660, 4805, 5560, 7223, 7688, 8618, 9320, 9610, 11120, 14446, 15376, 17236, 18640, 19220, 21545, 28892, 32387, 34472, 36115, 38440, 43090, 57784, 64774, 68944, 72230, 76880, 86180, 115568, 129548, 133579, 144460, 161935, 172360, 223913, 259096, 267158, 288920, 323870, 344720, 447826, 518192, 534316, 577840, 647740, 667895, 895652, 1003997, 1068632, 1119565, 1295480, 1335790, 1791304, 2007994, 2137264, 2239130, 2590960, 2671580, 3582608, 4015988, 4478260, 5019985, 5343160, 8031976, 8956520, 10039970, 10686320, 16063952, 17913040, 20079940, 31123907, 40159880, 62247814, 80319760, 124495628, 155619535, 248991256, 311239070, 497982512, 622478140, 1244956280, 2489912560]

約数ペア:

[(1, 2489912560), (2, 1244956280), (4, 622478140), (5, 497982512), (8, 311239070), (10, 248991256), (16, 155619535), (20, 124495628), (31, 80319760), (40, 62247814), (62, 40159880), (80, 31123907), (124, 20079940), (139, 17913040), (155, 16063952), (233, 10686320), (248, 10039970), (278, 8956520), (310, 8031976), (466, 5343160), (496, 5019985), (556, 4478260), (620, 4015988), (695, 3582608), (932, 2671580), (961, 2590960), (1112, 2239130), (1165, 2137264), (1240, 2007994), (1390, 1791304), (1864, 1335790), (1922, 1295480), (2224, 1119565), (2330, 1068632), (2480, 1003997), (2780, 895652), (3728, 667895), (3844, 647740), (4309, 577840), (4660, 534316), (4805, 518192), (5560, 447826), (7223, 344720), (7688, 323870), (8618, 288920), (9320, 267158), (9610, 259096), (11120, 223913), (14446, 172360), (15376, 161935), (17236, 144460), (18640, 133579), (19220, 129548), (21545, 115568), (28892, 86180), (32387, 76880), (34472, 72230), (36115, 68944), (38440, 64774), (43090, 57784)]