81748100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4027}}^1$

素因数の和:4077

約数の個数: 72

約数和(自身を含む): 209778240

約数和(自身を除く): 128030140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 50, 58, 70, 100, 116, 140, 145, 175, 203, 290, 350, 406, 580, 700, 725, 812, 1015, 1450, 2030, 2900, 4027, 4060, 5075, 8054, 10150, 16108, 20135, 20300, 28189, 40270, 56378, 80540, 100675, 112756, 116783, 140945, 201350, 233566, 281890, 402700, 467132, 563780, 583915, 704725, 817481, 1167830, 1409450, 1634962, 2335660, 2818900, 2919575, 3269924, 4087405, 5839150, 8174810, 11678300, 16349620, 20437025, 40874050, 81748100]

約数ペア:

[(1, 81748100), (2, 40874050), (4, 20437025), (5, 16349620), (7, 11678300), (10, 8174810), (14, 5839150), (20, 4087405), (25, 3269924), (28, 2919575), (29, 2818900), (35, 2335660), (50, 1634962), (58, 1409450), (70, 1167830), (100, 817481), (116, 704725), (140, 583915), (145, 563780), (175, 467132), (203, 402700), (290, 281890), (350, 233566), (406, 201350), (580, 140945), (700, 116783), (725, 112756), (812, 100675), (1015, 80540), (1450, 56378), (2030, 40270), (2900, 28189), (4027, 20300), (4060, 20135), (5075, 16108), (8054, 10150)]