19381450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:423

約数の個数: 48

約数和(自身を含む): 39774240

約数和(自身を除く): 20392790

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 131, 262, 269, 275, 538, 550, 655, 1310, 1345, 1441, 2690, 2882, 2959, 3275, 5918, 6550, 6725, 7205, 13450, 14410, 14795, 29590, 35239, 36025, 70478, 72050, 73975, 147950, 176195, 352390, 387629, 775258, 880975, 1761950, 1938145, 3876290, 9690725, 19381450]

約数ペア:

[(1, 19381450), (2, 9690725), (5, 3876290), (10, 1938145), (11, 1761950), (22, 880975), (25, 775258), (50, 387629), (55, 352390), (110, 176195), (131, 147950), (262, 73975), (269, 72050), (275, 70478), (538, 36025), (550, 35239), (655, 29590), (1310, 14795), (1345, 14410), (1441, 13450), (2690, 7205), (2882, 6725), (2959, 6550), (3275, 5918)]