19787075

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{541}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 32259840

約数和(自身を除く): 12472765

約数列:

[1, 5, 7, 11, 19, 25, 35, 55, 77, 95, 133, 175, 209, 275, 385, 475, 541, 665, 1045, 1463, 1925, 2705, 3325, 3787, 5225, 5951, 7315, 10279, 13525, 18935, 29755, 36575, 41657, 51395, 71953, 94675, 113069, 148775, 208285, 256975, 359765, 565345, 791483, 1041425, 1798825, 2826725, 3957415, 19787075]

約数ペア:

[(1, 19787075), (5, 3957415), (7, 2826725), (11, 1798825), (19, 1041425), (25, 791483), (35, 565345), (55, 359765), (77, 256975), (95, 208285), (133, 148775), (175, 113069), (209, 94675), (275, 71953), (385, 51395), (475, 41657), (541, 36575), (665, 29755), (1045, 18935), (1463, 13525), (1925, 10279), (2705, 7315), (3325, 5951), (3787, 5225)]