20860140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49667}}^1$

素因数の和:49686

約数の個数: 48

約数和(自身を含む): 66753792

約数和(自身を除く): 45893652

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, 49667, 99334, 149001, 198668, 248335, 298002, 347669, 496670, 596004, 695338, 745005, 993340, 1043007, 1390676, 1490010, 1738345, 2086014, 2980020, 3476690, 4172028, 5215035, 6953380, 10430070, 20860140]

約数ペア:

[(1, 20860140), (2, 10430070), (3, 6953380), (4, 5215035), (5, 4172028), (6, 3476690), (7, 2980020), (10, 2086014), (12, 1738345), (14, 1490010), (15, 1390676), (20, 1043007), (21, 993340), (28, 745005), (30, 695338), (35, 596004), (42, 496670), (60, 347669), (70, 298002), (84, 248335), (105, 198668), (140, 149001), (210, 99334), (420, 49667)]