28908470

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 57784320

約数和(自身を除く): 28875850

約数列:

[1, 2, 5, 10, 23, 37, 43, 46, 74, 79, 86, 115, 158, 185, 215, 230, 370, 395, 430, 790, 851, 989, 1591, 1702, 1817, 1978, 2923, 3182, 3397, 3634, 4255, 4945, 5846, 6794, 7955, 8510, 9085, 9890, 14615, 15910, 16985, 18170, 29230, 33970, 36593, 67229, 73186, 78131, 125689, 134458, 156262, 182965, 251378, 336145, 365930, 390655, 628445, 672290, 781310, 1256890, 2890847, 5781694, 14454235, 28908470]

約数ペア:

[(1, 28908470), (2, 14454235), (5, 5781694), (10, 2890847), (23, 1256890), (37, 781310), (43, 672290), (46, 628445), (74, 390655), (79, 365930), (86, 336145), (115, 251378), (158, 182965), (185, 156262), (215, 134458), (230, 125689), (370, 78131), (395, 73186), (430, 67229), (790, 36593), (851, 33970), (989, 29230), (1591, 18170), (1702, 16985), (1817, 15910), (1978, 14615), (2923, 9890), (3182, 9085), (3397, 8510), (3634, 7955), (4255, 6794), (4945, 5846)]