28821390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1103}}^1$

素因数の和:1193

約数の個数: 64

約数和(自身を含む): 75672576

約数和(自身を除く): 46851186

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 67, 78, 130, 134, 195, 201, 335, 390, 402, 670, 871, 1005, 1103, 1742, 2010, 2206, 2613, 3309, 4355, 5226, 5515, 6618, 8710, 11030, 13065, 14339, 16545, 26130, 28678, 33090, 43017, 71695, 73901, 86034, 143390, 147802, 215085, 221703, 369505, 430170, 443406, 739010, 960713, 1108515, 1921426, 2217030, 2882139, 4803565, 5764278, 9607130, 14410695, 28821390]

約数ペア:

[(1, 28821390), (2, 14410695), (3, 9607130), (5, 5764278), (6, 4803565), (10, 2882139), (13, 2217030), (15, 1921426), (26, 1108515), (30, 960713), (39, 739010), (65, 443406), (67, 430170), (78, 369505), (130, 221703), (134, 215085), (195, 147802), (201, 143390), (335, 86034), (390, 73901), (402, 71695), (670, 43017), (871, 33090), (1005, 28678), (1103, 26130), (1742, 16545), (2010, 14339), (2206, 13065), (2613, 11030), (3309, 8710), (4355, 6618), (5226, 5515)]