20228936720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13308511}}^1$

素因数の和:13308543

約数の個数: 40

約数和(自身を含む): 49507664640

約数和(自身を除く): 29278727920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13308511, 26617022, 53234044, 66542555, 106468088, 133085110, 212936176, 252861709, 266170220, 505723418, 532340440, 1011446836, 1064680880, 1264308545, 2022893672, 2528617090, 4045787344, 5057234180, 10114468360, 20228936720]

約数ペア:

[(1, 20228936720), (2, 10114468360), (4, 5057234180), (5, 4045787344), (8, 2528617090), (10, 2022893672), (16, 1264308545), (19, 1064680880), (20, 1011446836), (38, 532340440), (40, 505723418), (76, 266170220), (80, 252861709), (95, 212936176), (152, 133085110), (190, 106468088), (304, 66542555), (380, 53234044), (760, 26617022), (1520, 13308511)]