20164838085

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1\times {\mathrm{1051}}^1$

素因数の和:1408

約数の個数: 128

約数和(自身を含む): 41689497600

約数和(自身を除く): 21524659515

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 79, 105, 135, 189, 237, 257, 315, 395, 553, 711, 771, 945, 1051, 1185, 1285, 1659, 1799, 2133, 2313, 2765, 3153, 3555, 3855, 4977, 5255, 5397, 6939, 7357, 8295, 8995, 9459, 10665, 11565, 14931, 15765, 16191, 20303, 22071, 24885, 26985, 28377, 34695, 36785, 47295, 48573, 60909, 66213, 74655, 80955, 83029, 101515, 110355, 141885, 142121, 182727, 198639, 242865, 249087, 270107, 304545, 331065, 415145, 426363, 548181, 581203, 710605, 747261, 810321, 913635, 993195, 1245435, 1279089, 1350535, 1743609, 1890749, 2131815, 2241783, 2430963, 2740905, 2906015, 3736305, 3837267, 4051605, 5230827, 5672247, 6395445, 7292889, 8718045, 9453745, 11208915, 12154815, 15692481, 17016741, 19186335, 21338453, 26154135, 28361235, 36464445, 51050223, 64015359, 78462405, 85083705, 106692265, 149369171, 192046077, 255251115, 320076795, 448107513, 576138231, 746845855, 960230385, 1344322539, 2240537565, 2880691155, 4032967617, 6721612695, 20164838085]

約数ペア:

[(1, 20164838085), (3, 6721612695), (5, 4032967617), (7, 2880691155), (9, 2240537565), (15, 1344322539), (21, 960230385), (27, 746845855), (35, 576138231), (45, 448107513), (63, 320076795), (79, 255251115), (105, 192046077), (135, 149369171), (189, 106692265), (237, 85083705), (257, 78462405), (315, 64015359), (395, 51050223), (553, 36464445), (711, 28361235), (771, 26154135), (945, 21338453), (1051, 19186335), (1185, 17016741), (1285, 15692481), (1659, 12154815), (1799, 11208915), (2133, 9453745), (2313, 8718045), (2765, 7292889), (3153, 6395445), (3555, 5672247), (3855, 5230827), (4977, 4051605), (5255, 3837267), (5397, 3736305), (6939, 2906015), (7357, 2740905), (8295, 2430963), (8995, 2241783), (9459, 2131815), (10665, 1890749), (11565, 1743609), (14931, 1350535), (15765, 1279089), (16191, 1245435), (20303, 993195), (22071, 913635), (24885, 810321), (26985, 747261), (28377, 710605), (34695, 581203), (36785, 548181), (47295, 426363), (48573, 415145), (60909, 331065), (66213, 304545), (74655, 270107), (80955, 249087), (83029, 242865), (101515, 198639), (110355, 182727), (141885, 142121)]