201399880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:287

約数の個数: 128

約数和(自身を含む): 517104000

約数和(自身を除く): 315704120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 89, 110, 139, 148, 178, 185, 220, 278, 296, 356, 370, 407, 440, 445, 556, 695, 712, 740, 814, 890, 979, 1112, 1390, 1480, 1529, 1628, 1780, 1958, 2035, 2780, 3058, 3256, 3293, 3560, 3916, 4070, 4895, 5143, 5560, 6116, 6586, 7645, 7832, 8140, 9790, 10286, 12232, 12371, 13172, 15290, 16280, 16465, 19580, 20572, 24742, 25715, 26344, 30580, 32930, 36223, 39160, 41144, 49484, 51430, 56573, 61160, 61855, 65860, 72446, 98968, 102860, 113146, 123710, 131720, 136081, 144892, 181115, 205720, 226292, 247420, 272162, 282865, 289784, 362230, 452584, 457727, 494840, 544324, 565730, 680405, 724460, 915454, 1088648, 1131460, 1360810, 1448920, 1830908, 2262920, 2288635, 2721620, 3661816, 4577270, 5034997, 5443240, 9154540, 10069994, 18309080, 20139988, 25174985, 40279976, 50349970, 100699940, 201399880]

約数ペア:

[(1, 201399880), (2, 100699940), (4, 50349970), (5, 40279976), (8, 25174985), (10, 20139988), (11, 18309080), (20, 10069994), (22, 9154540), (37, 5443240), (40, 5034997), (44, 4577270), (55, 3661816), (74, 2721620), (88, 2288635), (89, 2262920), (110, 1830908), (139, 1448920), (148, 1360810), (178, 1131460), (185, 1088648), (220, 915454), (278, 724460), (296, 680405), (356, 565730), (370, 544324), (407, 494840), (440, 457727), (445, 452584), (556, 362230), (695, 289784), (712, 282865), (740, 272162), (814, 247420), (890, 226292), (979, 205720), (1112, 181115), (1390, 144892), (1480, 136081), (1529, 131720), (1628, 123710), (1780, 113146), (1958, 102860), (2035, 98968), (2780, 72446), (3058, 65860), (3256, 61855), (3293, 61160), (3560, 56573), (3916, 51430), (4070, 49484), (4895, 41144), (5143, 39160), (5560, 36223), (6116, 32930), (6586, 30580), (7645, 26344), (7832, 25715), (8140, 24742), (9790, 20572), (10286, 19580), (12232, 16465), (12371, 16280), (13172, 15290)]