721280280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1051}}^1$

素因数の和:1134

約数の個数: 256

約数和(自身を含む): 2666188800

約数和(自身を除く): 1944908520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 43, 56, 57, 60, 70, 76, 84, 86, 95, 105, 114, 120, 129, 133, 140, 152, 168, 172, 190, 210, 215, 228, 258, 266, 280, 285, 301, 344, 380, 399, 420, 430, 456, 516, 532, 570, 602, 645, 665, 760, 798, 817, 840, 860, 903, 1032, 1051, 1064, 1140, 1204, 1290, 1330, 1505, 1596, 1634, 1720, 1806, 1995, 2102, 2280, 2408, 2451, 2580, 2660, 3010, 3153, 3192, 3268, 3612, 3990, 4085, 4204, 4515, 4902, 5160, 5255, 5320, 5719, 6020, 6306, 6536, 7224, 7357, 7980, 8170, 8408, 9030, 9804, 10510, 11438, 12040, 12255, 12612, 14714, 15765, 15960, 16340, 17157, 18060, 19608, 19969, 21020, 22071, 22876, 24510, 25224, 28595, 29428, 31530, 32680, 34314, 36120, 36785, 39938, 42040, 44142, 45193, 45752, 49020, 57190, 58856, 59907, 63060, 68628, 73570, 79876, 85785, 88284, 90386, 98040, 99845, 110355, 114380, 119814, 126120, 135579, 137256, 139783, 147140, 159752, 171570, 176568, 180772, 199690, 220710, 225965, 228760, 239628, 271158, 279566, 294280, 299535, 316351, 343140, 361544, 399380, 419349, 441420, 451930, 479256, 542316, 559132, 599070, 632702, 677895, 686280, 698915, 798760, 838698, 858667, 882840, 903860, 949053, 1084632, 1118264, 1198140, 1265404, 1355790, 1397830, 1581755, 1677396, 1717334, 1807720, 1898106, 2096745, 2396280, 2530808, 2576001, 2711580, 2795660, 3163510, 3354792, 3434668, 3796212, 4193490, 4293335, 4745265, 5152002, 5423160, 5591320, 6010669, 6327020, 6869336, 7592424, 8386980, 8586670, 9490530, 10304004, 12021338, 12654040, 12880005, 16773960, 17173340, 18032007, 18981060, 20608008, 24042676, 25760010, 30053345, 34346680, 36064014, 37962120, 48085352, 51520020, 60106690, 72128028, 90160035, 103040040, 120213380, 144256056, 180320070, 240426760, 360640140, 721280280]

約数ペア:

[(1, 721280280), (2, 360640140), (3, 240426760), (4, 180320070), (5, 144256056), (6, 120213380), (7, 103040040), (8, 90160035), (10, 72128028), (12, 60106690), (14, 51520020), (15, 48085352), (19, 37962120), (20, 36064014), (21, 34346680), (24, 30053345), (28, 25760010), (30, 24042676), (35, 20608008), (38, 18981060), (40, 18032007), (42, 17173340), (43, 16773960), (56, 12880005), (57, 12654040), (60, 12021338), (70, 10304004), (76, 9490530), (84, 8586670), (86, 8386980), (95, 7592424), (105, 6869336), (114, 6327020), (120, 6010669), (129, 5591320), (133, 5423160), (140, 5152002), (152, 4745265), (168, 4293335), (172, 4193490), (190, 3796212), (210, 3434668), (215, 3354792), (228, 3163510), (258, 2795660), (266, 2711580), (280, 2576001), (285, 2530808), (301, 2396280), (344, 2096745), (380, 1898106), (399, 1807720), (420, 1717334), (430, 1677396), (456, 1581755), (516, 1397830), (532, 1355790), (570, 1265404), (602, 1198140), (645, 1118264), (665, 1084632), (760, 949053), (798, 903860), (817, 882840), (840, 858667), (860, 838698), (903, 798760), (1032, 698915), (1051, 686280), (1064, 677895), (1140, 632702), (1204, 599070), (1290, 559132), (1330, 542316), (1505, 479256), (1596, 451930), (1634, 441420), (1720, 419349), (1806, 399380), (1995, 361544), (2102, 343140), (2280, 316351), (2408, 299535), (2451, 294280), (2580, 279566), (2660, 271158), (3010, 239628), (3153, 228760), (3192, 225965), (3268, 220710), (3612, 199690), (3990, 180772), (4085, 176568), (4204, 171570), (4515, 159752), (4902, 147140), (5160, 139783), (5255, 137256), (5320, 135579), (5719, 126120), (6020, 119814), (6306, 114380), (6536, 110355), (7224, 99845), (7357, 98040), (7980, 90386), (8170, 88284), (8408, 85785), (9030, 79876), (9804, 73570), (10510, 68628), (11438, 63060), (12040, 59907), (12255, 58856), (12612, 57190), (14714, 49020), (15765, 45752), (15960, 45193), (16340, 44142), (17157, 42040), (18060, 39938), (19608, 36785), (19969, 36120), (21020, 34314), (22071, 32680), (22876, 31530), (24510, 29428), (25224, 28595)]