20668236472

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{37589}}^1$

素因数の和:37936

約数の個数: 64

約数和(自身を含む): 44332142400

約数和(自身を除く): 23663905928

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 311, 442, 622, 884, 1244, 1768, 2488, 4043, 5287, 8086, 10574, 16172, 21148, 32344, 37589, 42296, 68731, 75178, 137462, 150356, 274924, 300712, 488657, 549848, 639013, 977314, 1278026, 1954628, 2556052, 3909256, 5112104, 8307169, 11690179, 16614338, 23380358, 33228676, 46760716, 66457352, 93521432, 151972327, 198733043, 303944654, 397466086, 607889308, 794932172, 1215778616, 1589864344, 2583529559, 5167059118, 10334118236, 20668236472]

約数ペア:

[(1, 20668236472), (2, 10334118236), (4, 5167059118), (8, 2583529559), (13, 1589864344), (17, 1215778616), (26, 794932172), (34, 607889308), (52, 397466086), (68, 303944654), (104, 198733043), (136, 151972327), (221, 93521432), (311, 66457352), (442, 46760716), (622, 33228676), (884, 23380358), (1244, 16614338), (1768, 11690179), (2488, 8307169), (4043, 5112104), (5287, 3909256), (8086, 2556052), (10574, 1954628), (16172, 1278026), (21148, 977314), (32344, 639013), (37589, 549848), (42296, 488657), (68731, 300712), (75178, 274924), (137462, 150356)]