40721760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{28279}}^1$

素因数の和:28300

約数の個数: 72

約数和(自身を含む): 138967920

約数和(自身を除く): 98246160

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, 28279, 56558, 84837, 113116, 141395, 169674, 226232, 254511, 282790, 339348, 424185, 452464, 509022, 565580, 678696, 848370, 904928, 1018044, 1131160, 1272555, 1357392, 1696740, 2036088, 2262320, 2545110, 2714784, 3393480, 4072176, 4524640, 5090220, 6786960, 8144352, 10180440, 13573920, 20360880, 40721760]

約数ペア:

[(1, 40721760), (2, 20360880), (3, 13573920), (4, 10180440), (5, 8144352), (6, 6786960), (8, 5090220), (9, 4524640), (10, 4072176), (12, 3393480), (15, 2714784), (16, 2545110), (18, 2262320), (20, 2036088), (24, 1696740), (30, 1357392), (32, 1272555), (36, 1131160), (40, 1018044), (45, 904928), (48, 848370), (60, 678696), (72, 565580), (80, 509022), (90, 452464), (96, 424185), (120, 339348), (144, 282790), (160, 254511), (180, 226232), (240, 169674), (288, 141395), (360, 113116), (480, 84837), (720, 56558), (1440, 28279)]