30981704

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{15679}}^1$

素因数の和:15717

約数の個数: 32

約数和(自身を含む): 65856000

約数和(自身を除く): 34874296

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 15679, 31358, 62716, 125432, 203827, 297901, 407654, 595802, 815308, 1191604, 1630616, 2383208, 3872713, 7745426, 15490852, 30981704]

約数ペア:

[(1, 30981704), (2, 15490852), (4, 7745426), (8, 3872713), (13, 2383208), (19, 1630616), (26, 1191604), (38, 815308), (52, 595802), (76, 407654), (104, 297901), (152, 203827), (247, 125432), (494, 62716), (988, 31358), (1976, 15679)]