81658920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97213}}^1$

素因数の和:97234

約数の個数: 64

約数和(自身を含む): 279976320

約数和(自身を除く): 198317400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 97213, 194426, 291639, 388852, 486065, 583278, 680491, 777704, 972130, 1166556, 1360982, 1458195, 1944260, 2041473, 2333112, 2721964, 2916390, 3402455, 3888520, 4082946, 5443928, 5832780, 6804910, 8165892, 10207365, 11665560, 13609820, 16331784, 20414730, 27219640, 40829460, 81658920]

約数ペア:

[(1, 81658920), (2, 40829460), (3, 27219640), (4, 20414730), (5, 16331784), (6, 13609820), (7, 11665560), (8, 10207365), (10, 8165892), (12, 6804910), (14, 5832780), (15, 5443928), (20, 4082946), (21, 3888520), (24, 3402455), (28, 2916390), (30, 2721964), (35, 2333112), (40, 2041473), (42, 1944260), (56, 1458195), (60, 1360982), (70, 1166556), (84, 972130), (105, 777704), (120, 680491), (140, 583278), (168, 486065), (210, 388852), (280, 291639), (420, 194426), (840, 97213)]