400050

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{127}}^1$

素因数の和:152

約数の個数: 72

約数和(自身を含む): 1238016

約数和(自身を除く): 837966

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 127, 150, 175, 210, 225, 254, 315, 350, 381, 450, 525, 630, 635, 762, 889, 1050, 1143, 1270, 1575, 1778, 1905, 2286, 2667, 3150, 3175, 3810, 4445, 5334, 5715, 6350, 8001, 8890, 9525, 11430, 13335, 16002, 19050, 22225, 26670, 28575, 40005, 44450, 57150, 66675, 80010, 133350, 200025, 400050]

約数ペア:

[(1, 400050), (2, 200025), (3, 133350), (5, 80010), (6, 66675), (7, 57150), (9, 44450), (10, 40005), (14, 28575), (15, 26670), (18, 22225), (21, 19050), (25, 16002), (30, 13335), (35, 11430), (42, 9525), (45, 8890), (50, 8001), (63, 6350), (70, 5715), (75, 5334), (90, 4445), (105, 3810), (126, 3175), (127, 3150), (150, 2667), (175, 2286), (210, 1905), (225, 1778), (254, 1575), (315, 1270), (350, 1143), (381, 1050), (450, 889), (525, 762), (630, 635)]