64981460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{563}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 142128000

約数和(自身を除く): 77146540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 199, 290, 398, 563, 580, 796, 995, 1126, 1990, 2252, 2815, 3980, 5630, 5771, 11260, 11542, 16327, 23084, 28855, 32654, 57710, 65308, 81635, 112037, 115420, 163270, 224074, 326540, 448148, 560185, 1120370, 2240740, 3249073, 6498146, 12996292, 16245365, 32490730, 64981460]

約数ペア:

[(1, 64981460), (2, 32490730), (4, 16245365), (5, 12996292), (10, 6498146), (20, 3249073), (29, 2240740), (58, 1120370), (116, 560185), (145, 448148), (199, 326540), (290, 224074), (398, 163270), (563, 115420), (580, 112037), (796, 81635), (995, 65308), (1126, 57710), (1990, 32654), (2252, 28855), (2815, 23084), (3980, 16327), (5630, 11542), (5771, 11260)]