123792720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{515803}}^1$

素因数の和:515819

約数の個数: 40

約数和(自身を含む): 383758176

約数和(自身を除く): 259965456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 515803, 1031606, 1547409, 2063212, 2579015, 3094818, 4126424, 5158030, 6189636, 7737045, 8252848, 10316060, 12379272, 15474090, 20632120, 24758544, 30948180, 41264240, 61896360, 123792720]

約数ペア:

[(1, 123792720), (2, 61896360), (3, 41264240), (4, 30948180), (5, 24758544), (6, 20632120), (8, 15474090), (10, 12379272), (12, 10316060), (15, 8252848), (16, 7737045), (20, 6189636), (24, 5158030), (30, 4126424), (40, 3094818), (48, 2579015), (60, 2063212), (80, 1547409), (120, 1031606), (240, 515803)]