199115440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1297}}^1$

素因数の和:1430

約数の個数: 80

約数和(自身を含む): 492513120

約数和(自身を除く): 293397680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 101, 152, 190, 202, 304, 380, 404, 505, 760, 808, 1010, 1297, 1520, 1616, 1919, 2020, 2594, 3838, 4040, 5188, 6485, 7676, 8080, 9595, 10376, 12970, 15352, 19190, 20752, 24643, 25940, 30704, 38380, 49286, 51880, 76760, 98572, 103760, 123215, 130997, 153520, 197144, 246430, 261994, 394288, 492860, 523988, 654985, 985720, 1047976, 1309970, 1971440, 2095952, 2488943, 2619940, 4977886, 5239880, 9955772, 10479760, 12444715, 19911544, 24889430, 39823088, 49778860, 99557720, 199115440]

約数ペア:

[(1, 199115440), (2, 99557720), (4, 49778860), (5, 39823088), (8, 24889430), (10, 19911544), (16, 12444715), (19, 10479760), (20, 9955772), (38, 5239880), (40, 4977886), (76, 2619940), (80, 2488943), (95, 2095952), (101, 1971440), (152, 1309970), (190, 1047976), (202, 985720), (304, 654985), (380, 523988), (404, 492860), (505, 394288), (760, 261994), (808, 246430), (1010, 197144), (1297, 153520), (1520, 130997), (1616, 123215), (1919, 103760), (2020, 98572), (2594, 76760), (3838, 51880), (4040, 49286), (5188, 38380), (6485, 30704), (7676, 25940), (8080, 24643), (9595, 20752), (10376, 19190), (12970, 15352)]