1981554765

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{337861}}^1$

素因数の和:337909

約数の個数: 32

約数和(自身を含む): 3502953216

約数和(自身を除く): 1521398451

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 5865, 337861, 1013583, 1689305, 5067915, 5743637, 7770803, 17230911, 23312409, 28718185, 38854015, 86154555, 116562045, 132103651, 396310953, 660518255, 1981554765]

約数ペア:

[(1, 1981554765), (3, 660518255), (5, 396310953), (15, 132103651), (17, 116562045), (23, 86154555), (51, 38854015), (69, 28718185), (85, 23312409), (115, 17230911), (255, 7770803), (345, 5743637), (391, 5067915), (1173, 1689305), (1955, 1013583), (5865, 337861)]