28402660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9931}}^1$

素因数の和:9964

約数の個数: 48

約数和(自身を含む): 70080192

約数和(自身を除く): 41677532

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 9931, 19862, 39724, 49655, 99310, 109241, 129103, 198620, 218482, 258206, 436964, 516412, 546205, 645515, 1092410, 1291030, 1420133, 2184820, 2582060, 2840266, 5680532, 7100665, 14201330, 28402660]

約数ペア:

[(1, 28402660), (2, 14201330), (4, 7100665), (5, 5680532), (10, 2840266), (11, 2582060), (13, 2184820), (20, 1420133), (22, 1291030), (26, 1092410), (44, 645515), (52, 546205), (55, 516412), (65, 436964), (110, 258206), (130, 218482), (143, 198620), (220, 129103), (260, 109241), (286, 99310), (572, 49655), (715, 39724), (1430, 19862), (2860, 9931)]