71273720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{557}}^1$

素因数の和:1032

約数の個数: 64

約数和(自身を含む): 184006080

約数和(自身を除く): 112732360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 457, 557, 914, 1114, 1828, 2228, 2285, 2785, 3199, 3656, 3899, 4456, 4570, 5570, 6398, 7798, 9140, 11140, 12796, 15596, 15995, 18280, 19495, 22280, 25592, 31192, 31990, 38990, 63980, 77980, 127960, 155960, 254549, 509098, 1018196, 1272745, 1781843, 2036392, 2545490, 3563686, 5090980, 7127372, 8909215, 10181960, 14254744, 17818430, 35636860, 71273720]

約数ペア:

[(1, 71273720), (2, 35636860), (4, 17818430), (5, 14254744), (7, 10181960), (8, 8909215), (10, 7127372), (14, 5090980), (20, 3563686), (28, 2545490), (35, 2036392), (40, 1781843), (56, 1272745), (70, 1018196), (140, 509098), (280, 254549), (457, 155960), (557, 127960), (914, 77980), (1114, 63980), (1828, 38990), (2228, 31990), (2285, 31192), (2785, 25592), (3199, 22280), (3656, 19495), (3899, 18280), (4456, 15995), (4570, 15596), (5570, 12796), (6398, 11140), (7798, 9140)]