80819955

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{3643}}^1$

素因数の和:3700

約数の個数: 48

約数和(自身を含む): 153485280

約数和(自身を除く): 72665325

約数列:

[1, 3, 5, 9, 15, 17, 29, 45, 51, 85, 87, 145, 153, 255, 261, 435, 493, 765, 1305, 1479, 2465, 3643, 4437, 7395, 10929, 18215, 22185, 32787, 54645, 61931, 105647, 163935, 185793, 309655, 316941, 528235, 557379, 928965, 950823, 1584705, 1795999, 2786895, 4754115, 5387997, 8979995, 16163991, 26939985, 80819955]

約数ペア:

[(1, 80819955), (3, 26939985), (5, 16163991), (9, 8979995), (15, 5387997), (17, 4754115), (29, 2786895), (45, 1795999), (51, 1584705), (85, 950823), (87, 928965), (145, 557379), (153, 528235), (255, 316941), (261, 309655), (435, 185793), (493, 163935), (765, 105647), (1305, 61931), (1479, 54645), (2465, 32787), (3643, 22185), (4437, 18215), (7395, 10929)]