28128660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{66973}}^1$

素因数の和:66992

約数の個数: 48

約数和(自身を含む): 90013056

約数和(自身を除く): 61884396

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, 66973, 133946, 200919, 267892, 334865, 401838, 468811, 669730, 803676, 937622, 1004595, 1339460, 1406433, 1875244, 2009190, 2344055, 2812866, 4018380, 4688110, 5625732, 7032165, 9376220, 14064330, 28128660]

約数ペア:

[(1, 28128660), (2, 14064330), (3, 9376220), (4, 7032165), (5, 5625732), (6, 4688110), (7, 4018380), (10, 2812866), (12, 2344055), (14, 2009190), (15, 1875244), (20, 1406433), (21, 1339460), (28, 1004595), (30, 937622), (35, 803676), (42, 669730), (60, 468811), (70, 401838), (84, 334865), (105, 267892), (140, 200919), (210, 133946), (420, 66973)]