128772760

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{3581}}^1$

素因数の和:3652

約数の個数: 64

約数和(自身を含む): 309484800

約数和(自身を除く): 180712040

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 899, 1160, 1240, 1798, 3581, 3596, 4495, 7162, 7192, 8990, 14324, 17905, 17980, 28648, 35810, 35960, 71620, 103849, 111011, 143240, 207698, 222022, 415396, 444044, 519245, 555055, 830792, 888088, 1038490, 1110110, 2076980, 2220220, 3219319, 4153960, 4440440, 6438638, 12877276, 16096595, 25754552, 32193190, 64386380, 128772760]

約数ペア:

[(1, 128772760), (2, 64386380), (4, 32193190), (5, 25754552), (8, 16096595), (10, 12877276), (20, 6438638), (29, 4440440), (31, 4153960), (40, 3219319), (58, 2220220), (62, 2076980), (116, 1110110), (124, 1038490), (145, 888088), (155, 830792), (232, 555055), (248, 519245), (290, 444044), (310, 415396), (580, 222022), (620, 207698), (899, 143240), (1160, 111011), (1240, 103849), (1798, 71620), (3581, 35960), (3596, 35810), (4495, 28648), (7162, 17980), (7192, 17905), (8990, 14324)]