81421920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56543}}^1$

素因数の和:56564

約数の個数: 72

約数和(自身を含む): 277857216

約数和(自身を除く): 196435296

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 56543, 113086, 169629, 226172, 282715, 339258, 452344, 508887, 565430, 678516, 848145, 904688, 1017774, 1130860, 1357032, 1696290, 1809376, 2035548, 2261720, 2544435, 2714064, 3392580, 4071096, 4523440, 5088870, 5428128, 6785160, 8142192, 9046880, 10177740, 13570320, 16284384, 20355480, 27140640, 40710960, 81421920]

約数ペア:

[(1, 81421920), (2, 40710960), (3, 27140640), (4, 20355480), (5, 16284384), (6, 13570320), (8, 10177740), (9, 9046880), (10, 8142192), (12, 6785160), (15, 5428128), (16, 5088870), (18, 4523440), (20, 4071096), (24, 3392580), (30, 2714064), (32, 2544435), (36, 2261720), (40, 2035548), (45, 1809376), (48, 1696290), (60, 1357032), (72, 1130860), (80, 1017774), (90, 904688), (96, 848145), (120, 678516), (144, 565430), (160, 508887), (180, 452344), (240, 339258), (288, 282715), (360, 226172), (480, 169629), (720, 113086), (1440, 56543)]