20377305

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{683}}^1$

素因数の和:727

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 20991015

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 45, 51, 65, 85, 117, 135, 153, 195, 221, 255, 351, 459, 585, 663, 683, 765, 1105, 1755, 1989, 2049, 2295, 3315, 3415, 5967, 6147, 8879, 9945, 10245, 11611, 18441, 26637, 29835, 30735, 34833, 44395, 58055, 79911, 92205, 104499, 133185, 150943, 174165, 239733, 313497, 399555, 452829, 522495, 754715, 1198665, 1358487, 1567485, 2264145, 4075461, 6792435, 20377305]

約数ペア:

[(1, 20377305), (3, 6792435), (5, 4075461), (9, 2264145), (13, 1567485), (15, 1358487), (17, 1198665), (27, 754715), (39, 522495), (45, 452829), (51, 399555), (65, 313497), (85, 239733), (117, 174165), (135, 150943), (153, 133185), (195, 104499), (221, 92205), (255, 79911), (351, 58055), (459, 44395), (585, 34833), (663, 30735), (683, 29835), (765, 26637), (1105, 18441), (1755, 11611), (1989, 10245), (2049, 9945), (2295, 8879), (3315, 6147), (3415, 5967)]