20631660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49123}}^1$

素因数の和:49142

約数の個数: 48

約数和(自身を含む): 66022656

約数和(自身を除く): 45390996

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, 49123, 98246, 147369, 196492, 245615, 294738, 343861, 491230, 589476, 687722, 736845, 982460, 1031583, 1375444, 1473690, 1719305, 2063166, 2947380, 3438610, 4126332, 5157915, 6877220, 10315830, 20631660]

約数ペア:

[(1, 20631660), (2, 10315830), (3, 6877220), (4, 5157915), (5, 4126332), (6, 3438610), (7, 2947380), (10, 2063166), (12, 1719305), (14, 1473690), (15, 1375444), (20, 1031583), (21, 982460), (28, 736845), (30, 687722), (35, 589476), (42, 491230), (60, 343861), (70, 294738), (84, 245615), (105, 196492), (140, 147369), (210, 98246), (420, 49123)]