81181260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19609}}^1$

素因数の和:19647

約数の個数: 72

約数和(自身を含む): 256969440

約数和(自身を除く): 175788180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 19609, 39218, 58827, 78436, 98045, 117654, 176481, 196090, 235308, 294135, 352962, 392180, 451007, 588270, 705924, 882405, 902014, 1176540, 1353021, 1764810, 1804028, 2255035, 2706042, 3529620, 4059063, 4510070, 5412084, 6765105, 8118126, 9020140, 13530210, 16236252, 20295315, 27060420, 40590630, 81181260]

約数ペア:

[(1, 81181260), (2, 40590630), (3, 27060420), (4, 20295315), (5, 16236252), (6, 13530210), (9, 9020140), (10, 8118126), (12, 6765105), (15, 5412084), (18, 4510070), (20, 4059063), (23, 3529620), (30, 2706042), (36, 2255035), (45, 1804028), (46, 1764810), (60, 1353021), (69, 1176540), (90, 902014), (92, 882405), (115, 705924), (138, 588270), (180, 451007), (207, 392180), (230, 352962), (276, 294135), (345, 235308), (414, 196090), (460, 176481), (690, 117654), (828, 98045), (1035, 78436), (1380, 58827), (2070, 39218), (4140, 19609)]