71991855

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:190

約数の個数: 128

約数和(自身を含む): 154828800

約数和(自身を除く): 82836945

約数列:

[1, 3, 5, 9, 13, 15, 17, 19, 27, 39, 45, 51, 57, 65, 85, 95, 117, 127, 135, 153, 171, 195, 221, 247, 255, 285, 323, 351, 381, 459, 513, 585, 635, 663, 741, 765, 855, 969, 1105, 1143, 1235, 1615, 1651, 1755, 1905, 1989, 2159, 2223, 2295, 2413, 2565, 2907, 3315, 3429, 3705, 4199, 4845, 4953, 5715, 5967, 6477, 6669, 7239, 8255, 8721, 9945, 10795, 11115, 12065, 12597, 14535, 14859, 17145, 19431, 20995, 21717, 24765, 28067, 29835, 31369, 32385, 33345, 36195, 37791, 41021, 43605, 44577, 58293, 62985, 65151, 74295, 84201, 94107, 97155, 108585, 113373, 123063, 140335, 156845, 188955, 205105, 222885, 252603, 282321, 291465, 325755, 369189, 421005, 470535, 533273, 566865, 615315, 757809, 846963, 1107567, 1263015, 1411605, 1599819, 1845945, 2666365, 3789045, 4234815, 4799457, 5537835, 7999095, 14398371, 23997285, 71991855]

約数ペア:

[(1, 71991855), (3, 23997285), (5, 14398371), (9, 7999095), (13, 5537835), (15, 4799457), (17, 4234815), (19, 3789045), (27, 2666365), (39, 1845945), (45, 1599819), (51, 1411605), (57, 1263015), (65, 1107567), (85, 846963), (95, 757809), (117, 615315), (127, 566865), (135, 533273), (153, 470535), (171, 421005), (195, 369189), (221, 325755), (247, 291465), (255, 282321), (285, 252603), (323, 222885), (351, 205105), (381, 188955), (459, 156845), (513, 140335), (585, 123063), (635, 113373), (663, 108585), (741, 97155), (765, 94107), (855, 84201), (969, 74295), (1105, 65151), (1143, 62985), (1235, 58293), (1615, 44577), (1651, 43605), (1755, 41021), (1905, 37791), (1989, 36195), (2159, 33345), (2223, 32385), (2295, 31369), (2413, 29835), (2565, 28067), (2907, 24765), (3315, 21717), (3429, 20995), (3705, 19431), (4199, 17145), (4845, 14859), (4953, 14535), (5715, 12597), (5967, 12065), (6477, 11115), (6669, 10795), (7239, 9945), (8255, 8721)]