1257127928

素因数分解:

$2^3\times 7^3\times {\mathrm{23}}^1\times {\mathrm{19919}}^1$

素因数の和:19969

約数の個数: 64

約数和(自身を含む): 2868480000

約数和(自身を除く): 1611352072

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 49, 56, 92, 98, 161, 184, 196, 322, 343, 392, 644, 686, 1127, 1288, 1372, 2254, 2744, 4508, 7889, 9016, 15778, 19919, 31556, 39838, 63112, 79676, 139433, 159352, 278866, 458137, 557732, 916274, 976031, 1115464, 1832548, 1952062, 3206959, 3665096, 3904124, 6413918, 6832217, 7808248, 12827836, 13664434, 22448713, 25655672, 27328868, 44897426, 54657736, 89794852, 157140991, 179589704, 314281982, 628563964, 1257127928]

約数ペア:

[(1, 1257127928), (2, 628563964), (4, 314281982), (7, 179589704), (8, 157140991), (14, 89794852), (23, 54657736), (28, 44897426), (46, 27328868), (49, 25655672), (56, 22448713), (92, 13664434), (98, 12827836), (161, 7808248), (184, 6832217), (196, 6413918), (322, 3904124), (343, 3665096), (392, 3206959), (644, 1952062), (686, 1832548), (1127, 1115464), (1288, 976031), (1372, 916274), (2254, 557732), (2744, 458137), (4508, 278866), (7889, 159352), (9016, 139433), (15778, 79676), (19919, 63112), (31556, 39838)]