31305680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{55903}}^1$

素因数の和:55923

約数の個数: 40

約数和(自身を含む): 83185152

約数和(自身を除く): 51879472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 55903, 111806, 223612, 279515, 391321, 447224, 559030, 782642, 894448, 1118060, 1565284, 1956605, 2236120, 3130568, 3913210, 4472240, 6261136, 7826420, 15652840, 31305680]

約数ペア:

[(1, 31305680), (2, 15652840), (4, 7826420), (5, 6261136), (7, 4472240), (8, 3913210), (10, 3130568), (14, 2236120), (16, 1956605), (20, 1565284), (28, 1118060), (35, 894448), (40, 782642), (56, 559030), (70, 447224), (80, 391321), (112, 279515), (140, 223612), (280, 111806), (560, 55903)]