20512007178

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1181}}^1\times {\mathrm{5431}}^1$

素因数の和:6671

約数の個数: 64

約数和(自身を含む): 45303922944

約数和(自身を除く): 24791915766

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 78, 82, 123, 246, 533, 1066, 1181, 1599, 2362, 3198, 3543, 5431, 7086, 10862, 15353, 16293, 30706, 32586, 46059, 48421, 70603, 92118, 96842, 141206, 145263, 211809, 222671, 290526, 423618, 445342, 629473, 668013, 1258946, 1336026, 1888419, 2894723, 3776838, 5789446, 6414011, 8684169, 12828022, 17368338, 19242033, 38484066, 83382143, 166764286, 250146429, 262974451, 500292858, 525948902, 788923353, 1577846706, 3418667863, 6837335726, 10256003589, 20512007178]

約数ペア:

[(1, 20512007178), (2, 10256003589), (3, 6837335726), (6, 3418667863), (13, 1577846706), (26, 788923353), (39, 525948902), (41, 500292858), (78, 262974451), (82, 250146429), (123, 166764286), (246, 83382143), (533, 38484066), (1066, 19242033), (1181, 17368338), (1599, 12828022), (2362, 8684169), (3198, 6414011), (3543, 5789446), (5431, 3776838), (7086, 2894723), (10862, 1888419), (15353, 1336026), (16293, 1258946), (30706, 668013), (32586, 629473), (46059, 445342), (48421, 423618), (70603, 290526), (92118, 222671), (96842, 211809), (141206, 145263)]