20161491800

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{74287}}^1$

素因数の和:74385

約数の個数: 96

約数和(自身を含む): 49743244800

約数和(自身を除く): 29581753000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 59, 92, 100, 115, 118, 184, 200, 230, 236, 295, 460, 472, 575, 590, 920, 1150, 1180, 1357, 1475, 2300, 2360, 2714, 2950, 4600, 5428, 5900, 6785, 10856, 11800, 13570, 27140, 33925, 54280, 67850, 74287, 135700, 148574, 271400, 297148, 371435, 594296, 742870, 1485740, 1708601, 1857175, 2971480, 3417202, 3714350, 4382933, 6834404, 7428700, 8543005, 8765866, 13668808, 14857400, 17086010, 17531732, 21914665, 34172020, 35063464, 42715025, 43829330, 68344040, 85430050, 87658660, 100807459, 109573325, 170860100, 175317320, 201614918, 219146650, 341720200, 403229836, 438293300, 504037295, 806459672, 876586600, 1008074590, 2016149180, 2520186475, 4032298360, 5040372950, 10080745900, 20161491800]

約数ペア:

[(1, 20161491800), (2, 10080745900), (4, 5040372950), (5, 4032298360), (8, 2520186475), (10, 2016149180), (20, 1008074590), (23, 876586600), (25, 806459672), (40, 504037295), (46, 438293300), (50, 403229836), (59, 341720200), (92, 219146650), (100, 201614918), (115, 175317320), (118, 170860100), (184, 109573325), (200, 100807459), (230, 87658660), (236, 85430050), (295, 68344040), (460, 43829330), (472, 42715025), (575, 35063464), (590, 34172020), (920, 21914665), (1150, 17531732), (1180, 17086010), (1357, 14857400), (1475, 13668808), (2300, 8765866), (2360, 8543005), (2714, 7428700), (2950, 6834404), (4600, 4382933), (5428, 3714350), (5900, 3417202), (6785, 2971480), (10856, 1857175), (11800, 1708601), (13570, 1485740), (27140, 742870), (33925, 594296), (54280, 371435), (67850, 297148), (74287, 271400), (135700, 148574)]