21705916520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{233}}^1\times {\mathrm{80309}}^1$

素因数の和:80582

約数の個数: 64

約数和(自身を含む): 50739858000

約数和(自身を除く): 29033941480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 233, 290, 466, 580, 932, 1160, 1165, 1864, 2330, 4660, 6757, 9320, 13514, 27028, 33785, 54056, 67570, 80309, 135140, 160618, 270280, 321236, 401545, 642472, 803090, 1606180, 2328961, 3212360, 4657922, 9315844, 11644805, 18631688, 18711997, 23289610, 37423994, 46579220, 74847988, 93158440, 93559985, 149695976, 187119970, 374239940, 542647913, 748479880, 1085295826, 2170591652, 2713239565, 4341183304, 5426479130, 10852958260, 21705916520]

約数ペア:

[(1, 21705916520), (2, 10852958260), (4, 5426479130), (5, 4341183304), (8, 2713239565), (10, 2170591652), (20, 1085295826), (29, 748479880), (40, 542647913), (58, 374239940), (116, 187119970), (145, 149695976), (232, 93559985), (233, 93158440), (290, 74847988), (466, 46579220), (580, 37423994), (932, 23289610), (1160, 18711997), (1165, 18631688), (1864, 11644805), (2330, 9315844), (4660, 4657922), (6757, 3212360), (9320, 2328961), (13514, 1606180), (27028, 803090), (33785, 642472), (54056, 401545), (67570, 321236), (80309, 270280), (135140, 160618)]