18710440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3517}}^1$

素因数の和:3554

約数の個数: 64

約数和(自身を含む): 50659200

約数和(自身を除く): 31948760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3517, 5320, 7034, 14068, 17585, 24619, 28136, 35170, 49238, 66823, 70340, 98476, 123095, 133646, 140680, 196952, 246190, 267292, 334115, 467761, 492380, 534584, 668230, 935522, 984760, 1336460, 1871044, 2338805, 2672920, 3742088, 4677610, 9355220, 18710440]

約数ペア:

[(1, 18710440), (2, 9355220), (4, 4677610), (5, 3742088), (7, 2672920), (8, 2338805), (10, 1871044), (14, 1336460), (19, 984760), (20, 935522), (28, 668230), (35, 534584), (38, 492380), (40, 467761), (56, 334115), (70, 267292), (76, 246190), (95, 196952), (133, 140680), (140, 133646), (152, 123095), (190, 98476), (266, 70340), (280, 66823), (380, 49238), (532, 35170), (665, 28136), (760, 24619), (1064, 17585), (1330, 14068), (2660, 7034), (3517, 5320)]