28478670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:641

約数の個数: 64

約数和(自身を含む): 75098880

約数和(自身を除く): 46620210

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 211, 330, 409, 422, 633, 818, 1055, 1227, 1266, 2045, 2110, 2321, 2454, 3165, 4090, 4499, 4642, 6135, 6330, 6963, 8998, 11605, 12270, 13497, 13926, 22495, 23210, 26994, 34815, 44990, 67485, 69630, 86299, 134970, 172598, 258897, 431495, 517794, 862990, 949289, 1294485, 1898578, 2588970, 2847867, 4746445, 5695734, 9492890, 14239335, 28478670]

約数ペア:

[(1, 28478670), (2, 14239335), (3, 9492890), (5, 5695734), (6, 4746445), (10, 2847867), (11, 2588970), (15, 1898578), (22, 1294485), (30, 949289), (33, 862990), (55, 517794), (66, 431495), (110, 258897), (165, 172598), (211, 134970), (330, 86299), (409, 69630), (422, 67485), (633, 44990), (818, 34815), (1055, 26994), (1227, 23210), (1266, 22495), (2045, 13926), (2110, 13497), (2321, 12270), (2454, 11605), (3165, 8998), (4090, 6963), (4499, 6330), (4642, 6135)]