20421660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{48623}}^1$

素因数の和:48642

約数の個数: 48

約数和(自身を含む): 65350656

約数和(自身を除く): 44928996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 48623, 97246, 145869, 194492, 243115, 291738, 340361, 486230, 583476, 680722, 729345, 972460, 1021083, 1361444, 1458690, 1701805, 2042166, 2917380, 3403610, 4084332, 5105415, 6807220, 10210830, 20421660]

約数ペア:

[(1, 20421660), (2, 10210830), (3, 6807220), (4, 5105415), (5, 4084332), (6, 3403610), (7, 2917380), (10, 2042166), (12, 1701805), (14, 1458690), (15, 1361444), (20, 1021083), (21, 972460), (28, 729345), (30, 680722), (35, 583476), (42, 486230), (60, 340361), (70, 291738), (84, 243115), (105, 194492), (140, 145869), (210, 97246), (420, 48623)]