280455320

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1\times {\mathrm{787}}^1$

素因数の和:1008

約数の個数: 64

約数和(自身を含む): 646790400

約数和(自身を除く): 366335080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 151, 236, 295, 302, 472, 590, 604, 755, 787, 1180, 1208, 1510, 1574, 2360, 3020, 3148, 3935, 6040, 6296, 7870, 8909, 15740, 17818, 31480, 35636, 44545, 46433, 71272, 89090, 92866, 118837, 178180, 185732, 232165, 237674, 356360, 371464, 464330, 475348, 594185, 928660, 950696, 1188370, 1857320, 2376740, 4753480, 7011383, 14022766, 28045532, 35056915, 56091064, 70113830, 140227660, 280455320]

約数ペア:

[(1, 280455320), (2, 140227660), (4, 70113830), (5, 56091064), (8, 35056915), (10, 28045532), (20, 14022766), (40, 7011383), (59, 4753480), (118, 2376740), (151, 1857320), (236, 1188370), (295, 950696), (302, 928660), (472, 594185), (590, 475348), (604, 464330), (755, 371464), (787, 356360), (1180, 237674), (1208, 232165), (1510, 185732), (1574, 178180), (2360, 118837), (3020, 92866), (3148, 89090), (3935, 71272), (6040, 46433), (6296, 44545), (7870, 35636), (8909, 31480), (15740, 17818)]