31997805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 63191040

約数和(自身を除く): 31193235

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 43, 57, 95, 105, 129, 133, 215, 285, 301, 373, 399, 645, 665, 817, 903, 1119, 1505, 1865, 1995, 2451, 2611, 4085, 4515, 5595, 5719, 7087, 7833, 12255, 13055, 16039, 17157, 21261, 28595, 35435, 39165, 48117, 49609, 80195, 85785, 106305, 112273, 148827, 240585, 248045, 304741, 336819, 561365, 744135, 914223, 1523705, 1684095, 2133187, 4571115, 6399561, 10665935, 31997805]

約数ペア:

[(1, 31997805), (3, 10665935), (5, 6399561), (7, 4571115), (15, 2133187), (19, 1684095), (21, 1523705), (35, 914223), (43, 744135), (57, 561365), (95, 336819), (105, 304741), (129, 248045), (133, 240585), (215, 148827), (285, 112273), (301, 106305), (373, 85785), (399, 80195), (645, 49609), (665, 48117), (817, 39165), (903, 35435), (1119, 28595), (1505, 21261), (1865, 17157), (1995, 16039), (2451, 13055), (2611, 12255), (4085, 7833), (4515, 7087), (5595, 5719)]