212638020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{506281}}^1$

素因数の和:506300

約数の個数: 48

約数和(自身を含む): 680443008

約数和(自身を除く): 467804988

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, 506281, 1012562, 1518843, 2025124, 2531405, 3037686, 3543967, 5062810, 6075372, 7087934, 7594215, 10125620, 10631901, 14175868, 15188430, 17719835, 21263802, 30376860, 35439670, 42527604, 53159505, 70879340, 106319010, 212638020]

約数ペア:

[(1, 212638020), (2, 106319010), (3, 70879340), (4, 53159505), (5, 42527604), (6, 35439670), (7, 30376860), (10, 21263802), (12, 17719835), (14, 15188430), (15, 14175868), (20, 10631901), (21, 10125620), (28, 7594215), (30, 7087934), (35, 6075372), (42, 5062810), (60, 3543967), (70, 3037686), (84, 2531405), (105, 2025124), (140, 1518843), (210, 1012562), (420, 506281)]