397450900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{727}}^1$

素因数の和:830

約数の個数: 144

約数和(自身を含む): 1091930112

約数和(自身を除く): 694479212

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 71, 77, 100, 110, 140, 142, 154, 175, 220, 275, 284, 308, 350, 355, 385, 497, 550, 700, 710, 727, 770, 781, 994, 1100, 1420, 1454, 1540, 1562, 1775, 1925, 1988, 2485, 2908, 3124, 3550, 3635, 3850, 3905, 4970, 5089, 5467, 7100, 7270, 7700, 7810, 7997, 9940, 10178, 10934, 12425, 14540, 15620, 15994, 18175, 19525, 20356, 21868, 24850, 25445, 27335, 31988, 36350, 39050, 39985, 49700, 50890, 51617, 54670, 55979, 72700, 78100, 79970, 101780, 103234, 109340, 111958, 127225, 136675, 159940, 199925, 206468, 223916, 254450, 258085, 273350, 279895, 361319, 399850, 508900, 516170, 546700, 559790, 567787, 722638, 799700, 1032340, 1119580, 1135574, 1290425, 1399475, 1445276, 1806595, 2271148, 2580850, 2798950, 2838935, 3613190, 3974509, 5161700, 5597900, 5677870, 7226380, 7949018, 9032975, 11355740, 14194675, 15898036, 18065950, 19872545, 28389350, 36131900, 39745090, 56778700, 79490180, 99362725, 198725450, 397450900]

約数ペア:

[(1, 397450900), (2, 198725450), (4, 99362725), (5, 79490180), (7, 56778700), (10, 39745090), (11, 36131900), (14, 28389350), (20, 19872545), (22, 18065950), (25, 15898036), (28, 14194675), (35, 11355740), (44, 9032975), (50, 7949018), (55, 7226380), (70, 5677870), (71, 5597900), (77, 5161700), (100, 3974509), (110, 3613190), (140, 2838935), (142, 2798950), (154, 2580850), (175, 2271148), (220, 1806595), (275, 1445276), (284, 1399475), (308, 1290425), (350, 1135574), (355, 1119580), (385, 1032340), (497, 799700), (550, 722638), (700, 567787), (710, 559790), (727, 546700), (770, 516170), (781, 508900), (994, 399850), (1100, 361319), (1420, 279895), (1454, 273350), (1540, 258085), (1562, 254450), (1775, 223916), (1925, 206468), (1988, 199925), (2485, 159940), (2908, 136675), (3124, 127225), (3550, 111958), (3635, 109340), (3850, 103234), (3905, 101780), (4970, 79970), (5089, 78100), (5467, 72700), (7100, 55979), (7270, 54670), (7700, 51617), (7810, 50890), (7997, 49700), (9940, 39985), (10178, 39050), (10934, 36350), (12425, 31988), (14540, 27335), (15620, 25445), (15994, 24850), (18175, 21868), (19525, 20356)]