1645140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{3917}}^1$

素因数の和:3936

約数の個数: 48

約数和(自身を含む): 5265792

約数和(自身を除く): 3620652

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, 3917, 7834, 11751, 15668, 19585, 23502, 27419, 39170, 47004, 54838, 58755, 78340, 82257, 109676, 117510, 137095, 164514, 235020, 274190, 329028, 411285, 548380, 822570, 1645140]

約数ペア:

[(1, 1645140), (2, 822570), (3, 548380), (4, 411285), (5, 329028), (6, 274190), (7, 235020), (10, 164514), (12, 137095), (14, 117510), (15, 109676), (20, 82257), (21, 78340), (28, 58755), (30, 54838), (35, 47004), (42, 39170), (60, 27419), (70, 23502), (84, 19585), (105, 15668), (140, 11751), (210, 7834), (420, 3917)]