129521000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{18503}}^1$

素因数の和:18531

約数の個数: 64

約数和(自身を含む): 346394880

約数和(自身を除く): 216873880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 700, 875, 1000, 1400, 1750, 3500, 7000, 18503, 37006, 74012, 92515, 129521, 148024, 185030, 259042, 370060, 462575, 518084, 647605, 740120, 925150, 1036168, 1295210, 1850300, 2312875, 2590420, 3238025, 3700600, 4625750, 5180840, 6476050, 9251500, 12952100, 16190125, 18503000, 25904200, 32380250, 64760500, 129521000]

約数ペア:

[(1, 129521000), (2, 64760500), (4, 32380250), (5, 25904200), (7, 18503000), (8, 16190125), (10, 12952100), (14, 9251500), (20, 6476050), (25, 5180840), (28, 4625750), (35, 3700600), (40, 3238025), (50, 2590420), (56, 2312875), (70, 1850300), (100, 1295210), (125, 1036168), (140, 925150), (175, 740120), (200, 647605), (250, 518084), (280, 462575), (350, 370060), (500, 259042), (700, 185030), (875, 148024), (1000, 129521), (1400, 92515), (1750, 74012), (3500, 37006), (7000, 18503)]