399797580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1979}}^1$

素因数の和:2048

約数の個数: 192

約数和(自身を含む): 1415715840

約数和(自身を除く): 1015918260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 37, 39, 42, 52, 60, 65, 70, 74, 78, 84, 91, 105, 111, 130, 140, 148, 156, 182, 185, 195, 210, 222, 259, 260, 273, 364, 370, 390, 420, 444, 455, 481, 518, 546, 555, 740, 777, 780, 910, 962, 1036, 1092, 1110, 1295, 1365, 1443, 1554, 1820, 1924, 1979, 2220, 2405, 2590, 2730, 2886, 3108, 3367, 3885, 3958, 4810, 5180, 5460, 5772, 5937, 6734, 7215, 7770, 7916, 9620, 9895, 10101, 11874, 13468, 13853, 14430, 15540, 16835, 19790, 20202, 23748, 25727, 27706, 28860, 29685, 33670, 39580, 40404, 41559, 50505, 51454, 55412, 59370, 67340, 69265, 73223, 77181, 83118, 101010, 102908, 118740, 128635, 138530, 146446, 154362, 166236, 180089, 202020, 207795, 219669, 257270, 277060, 292892, 308724, 360178, 366115, 385905, 415590, 439338, 512561, 514540, 540267, 720356, 732230, 771810, 831180, 878676, 900445, 951899, 1025122, 1080534, 1098345, 1464460, 1537683, 1543620, 1800890, 1903798, 2050244, 2161068, 2196690, 2562805, 2701335, 2855697, 3075366, 3601780, 3807596, 4393380, 4759495, 5125610, 5402670, 5711394, 6150732, 6663293, 7688415, 9518990, 10251220, 10805340, 11422788, 13326586, 14278485, 15376830, 19037980, 19989879, 26653172, 28556970, 30753660, 33316465, 39979758, 57113940, 66632930, 79959516, 99949395, 133265860, 199898790, 399797580]

約数ペア:

[(1, 399797580), (2, 199898790), (3, 133265860), (4, 99949395), (5, 79959516), (6, 66632930), (7, 57113940), (10, 39979758), (12, 33316465), (13, 30753660), (14, 28556970), (15, 26653172), (20, 19989879), (21, 19037980), (26, 15376830), (28, 14278485), (30, 13326586), (35, 11422788), (37, 10805340), (39, 10251220), (42, 9518990), (52, 7688415), (60, 6663293), (65, 6150732), (70, 5711394), (74, 5402670), (78, 5125610), (84, 4759495), (91, 4393380), (105, 3807596), (111, 3601780), (130, 3075366), (140, 2855697), (148, 2701335), (156, 2562805), (182, 2196690), (185, 2161068), (195, 2050244), (210, 1903798), (222, 1800890), (259, 1543620), (260, 1537683), (273, 1464460), (364, 1098345), (370, 1080534), (390, 1025122), (420, 951899), (444, 900445), (455, 878676), (481, 831180), (518, 771810), (546, 732230), (555, 720356), (740, 540267), (777, 514540), (780, 512561), (910, 439338), (962, 415590), (1036, 385905), (1092, 366115), (1110, 360178), (1295, 308724), (1365, 292892), (1443, 277060), (1554, 257270), (1820, 219669), (1924, 207795), (1979, 202020), (2220, 180089), (2405, 166236), (2590, 154362), (2730, 146446), (2886, 138530), (3108, 128635), (3367, 118740), (3885, 102908), (3958, 101010), (4810, 83118), (5180, 77181), (5460, 73223), (5772, 69265), (5937, 67340), (6734, 59370), (7215, 55412), (7770, 51454), (7916, 50505), (9620, 41559), (9895, 40404), (10101, 39580), (11874, 33670), (13468, 29685), (13853, 28860), (14430, 27706), (15540, 25727), (16835, 23748), (19790, 20202)]