30542680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{15583}}^1$

素因数の和:15608

約数の個数: 48

約数和(自身を含む): 79945920

約数和(自身を除く): 49403240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 15583, 31166, 62332, 77915, 109081, 124664, 155830, 218162, 311660, 436324, 545405, 623320, 763567, 872648, 1090810, 1527134, 2181620, 3054268, 3817835, 4363240, 6108536, 7635670, 15271340, 30542680]

約数ペア:

[(1, 30542680), (2, 15271340), (4, 7635670), (5, 6108536), (7, 4363240), (8, 3817835), (10, 3054268), (14, 2181620), (20, 1527134), (28, 1090810), (35, 872648), (40, 763567), (49, 623320), (56, 545405), (70, 436324), (98, 311660), (140, 218162), (196, 155830), (245, 124664), (280, 109081), (392, 77915), (490, 62332), (980, 31166), (1960, 15583)]