212808540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{506687}}^1$

素因数の和:506706

約数の個数: 48

約数和(自身を含む): 680988672

約数和(自身を除く): 468180132

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, 506687, 1013374, 1520061, 2026748, 2533435, 3040122, 3546809, 5066870, 6080244, 7093618, 7600305, 10133740, 10640427, 14187236, 15200610, 17734045, 21280854, 30401220, 35468090, 42561708, 53202135, 70936180, 106404270, 212808540]

約数ペア:

[(1, 212808540), (2, 106404270), (3, 70936180), (4, 53202135), (5, 42561708), (6, 35468090), (7, 30401220), (10, 21280854), (12, 17734045), (14, 15200610), (15, 14187236), (20, 10640427), (21, 10133740), (28, 7600305), (30, 7093618), (35, 6080244), (42, 5066870), (60, 3546809), (70, 3040122), (84, 2533435), (105, 2026748), (140, 1520061), (210, 1013374), (420, 506687)]