20736691840

素因数分解:

$2^7\times 5^1\times {\mathrm{5113}}^1\times {\mathrm{6337}}^1$

素因数の和:11469

約数の個数: 64

約数和(自身を含む): 49591173960

約数和(自身を除く): 28854482120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 5113, 6337, 10226, 12674, 20452, 25348, 25565, 31685, 40904, 50696, 51130, 63370, 81808, 101392, 102260, 126740, 163616, 202784, 204520, 253480, 327232, 405568, 409040, 506960, 654464, 811136, 818080, 1013920, 1636160, 2027840, 3272320, 4055680, 32401081, 64802162, 129604324, 162005405, 259208648, 324010810, 518417296, 648021620, 1036834592, 1296043240, 2073669184, 2592086480, 4147338368, 5184172960, 10368345920, 20736691840]

約数ペア:

[(1, 20736691840), (2, 10368345920), (4, 5184172960), (5, 4147338368), (8, 2592086480), (10, 2073669184), (16, 1296043240), (20, 1036834592), (32, 648021620), (40, 518417296), (64, 324010810), (80, 259208648), (128, 162005405), (160, 129604324), (320, 64802162), (640, 32401081), (5113, 4055680), (6337, 3272320), (10226, 2027840), (12674, 1636160), (20452, 1013920), (25348, 818080), (25565, 811136), (31685, 654464), (40904, 506960), (50696, 409040), (51130, 405568), (63370, 327232), (81808, 253480), (101392, 204520), (102260, 202784), (126740, 163616)]