247997820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1259}}^1$

素因数の和:1352

約数の個数: 144

約数和(自身を含む): 820471680

約数和(自身を除く): 572473860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 67, 70, 84, 98, 105, 134, 140, 147, 196, 201, 210, 245, 268, 294, 335, 402, 420, 469, 490, 588, 670, 735, 804, 938, 980, 1005, 1259, 1340, 1407, 1470, 1876, 2010, 2345, 2518, 2814, 2940, 3283, 3777, 4020, 4690, 5036, 5628, 6295, 6566, 7035, 7554, 8813, 9380, 9849, 12590, 13132, 14070, 15108, 16415, 17626, 18885, 19698, 25180, 26439, 28140, 32830, 35252, 37770, 39396, 44065, 49245, 52878, 61691, 65660, 75540, 84353, 88130, 98490, 105756, 123382, 132195, 168706, 176260, 185073, 196980, 246764, 253059, 264390, 308455, 337412, 370146, 421765, 506118, 528780, 590471, 616910, 740292, 843530, 925365, 1012236, 1180942, 1233820, 1265295, 1687060, 1771413, 1850730, 2361884, 2530590, 2952355, 3542826, 3701460, 4133297, 5061180, 5904710, 7085652, 8266594, 8857065, 11809420, 12399891, 16533188, 17714130, 20666485, 24799782, 35428260, 41332970, 49599564, 61999455, 82665940, 123998910, 247997820]

約数ペア:

[(1, 247997820), (2, 123998910), (3, 82665940), (4, 61999455), (5, 49599564), (6, 41332970), (7, 35428260), (10, 24799782), (12, 20666485), (14, 17714130), (15, 16533188), (20, 12399891), (21, 11809420), (28, 8857065), (30, 8266594), (35, 7085652), (42, 5904710), (49, 5061180), (60, 4133297), (67, 3701460), (70, 3542826), (84, 2952355), (98, 2530590), (105, 2361884), (134, 1850730), (140, 1771413), (147, 1687060), (196, 1265295), (201, 1233820), (210, 1180942), (245, 1012236), (268, 925365), (294, 843530), (335, 740292), (402, 616910), (420, 590471), (469, 528780), (490, 506118), (588, 421765), (670, 370146), (735, 337412), (804, 308455), (938, 264390), (980, 253059), (1005, 246764), (1259, 196980), (1340, 185073), (1407, 176260), (1470, 168706), (1876, 132195), (2010, 123382), (2345, 105756), (2518, 98490), (2814, 88130), (2940, 84353), (3283, 75540), (3777, 65660), (4020, 61691), (4690, 52878), (5036, 49245), (5628, 44065), (6295, 39396), (6566, 37770), (7035, 35252), (7554, 32830), (8813, 28140), (9380, 26439), (9849, 25180), (12590, 19698), (13132, 18885), (14070, 17626), (15108, 16415)]