87981885

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2447}}^1$

素因数の和:2522

約数の個数: 48

約数和(自身を含む): 164975616

約数和(自身を除く): 76993731

約数列:

[1, 3, 5, 9, 15, 17, 45, 47, 51, 85, 141, 153, 235, 255, 423, 705, 765, 799, 2115, 2397, 2447, 3995, 7191, 7341, 11985, 12235, 22023, 35955, 36705, 41599, 110115, 115009, 124797, 207995, 345027, 374391, 575045, 623985, 1035081, 1725135, 1871955, 1955153, 5175405, 5865459, 9775765, 17596377, 29327295, 87981885]

約数ペア:

[(1, 87981885), (3, 29327295), (5, 17596377), (9, 9775765), (15, 5865459), (17, 5175405), (45, 1955153), (47, 1871955), (51, 1725135), (85, 1035081), (141, 623985), (153, 575045), (235, 374391), (255, 345027), (423, 207995), (705, 124797), (765, 115009), (799, 110115), (2115, 41599), (2397, 36705), (2447, 35955), (3995, 22023), (7191, 12235), (7341, 11985)]