254692480

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:574

約数の個数: 128

約数和(自身を含む): 702576000

約数和(自身を除く): 447883520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 139, 140, 160, 224, 278, 280, 320, 409, 448, 556, 560, 640, 695, 818, 896, 973, 1112, 1120, 1390, 1636, 1946, 2045, 2224, 2240, 2780, 2863, 3272, 3892, 4090, 4448, 4480, 4865, 5560, 5726, 6544, 7784, 8180, 8896, 9730, 11120, 11452, 13088, 14315, 15568, 16360, 17792, 19460, 22240, 22904, 26176, 28630, 31136, 32720, 38920, 44480, 45808, 52352, 56851, 57260, 62272, 65440, 77840, 88960, 91616, 113702, 114520, 124544, 130880, 155680, 183232, 227404, 229040, 261760, 284255, 311360, 366464, 397957, 454808, 458080, 568510, 622720, 795914, 909616, 916160, 1137020, 1591828, 1819232, 1832320, 1989785, 2274040, 3183656, 3638464, 3979570, 4548080, 6367312, 7276928, 7959140, 9096160, 12734624, 15918280, 18192320, 25469248, 31836560, 36384640, 50938496, 63673120, 127346240, 254692480]

約数ペア:

[(1, 254692480), (2, 127346240), (4, 63673120), (5, 50938496), (7, 36384640), (8, 31836560), (10, 25469248), (14, 18192320), (16, 15918280), (20, 12734624), (28, 9096160), (32, 7959140), (35, 7276928), (40, 6367312), (56, 4548080), (64, 3979570), (70, 3638464), (80, 3183656), (112, 2274040), (128, 1989785), (139, 1832320), (140, 1819232), (160, 1591828), (224, 1137020), (278, 916160), (280, 909616), (320, 795914), (409, 622720), (448, 568510), (556, 458080), (560, 454808), (640, 397957), (695, 366464), (818, 311360), (896, 284255), (973, 261760), (1112, 229040), (1120, 227404), (1390, 183232), (1636, 155680), (1946, 130880), (2045, 124544), (2224, 114520), (2240, 113702), (2780, 91616), (2863, 88960), (3272, 77840), (3892, 65440), (4090, 62272), (4448, 57260), (4480, 56851), (4865, 52352), (5560, 45808), (5726, 44480), (6544, 38920), (7784, 32720), (8180, 31136), (8896, 28630), (9730, 26176), (11120, 22904), (11452, 22240), (13088, 19460), (14315, 17792), (15568, 16360)]