209375000

素因数分解:

$2^3\times 5^8\times {\mathrm{67}}^1$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 498046620

約数和(自身を除く): 288671620

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 67, 100, 125, 134, 200, 250, 268, 335, 500, 536, 625, 670, 1000, 1250, 1340, 1675, 2500, 2680, 3125, 3350, 5000, 6250, 6700, 8375, 12500, 13400, 15625, 16750, 25000, 31250, 33500, 41875, 62500, 67000, 78125, 83750, 125000, 156250, 167500, 209375, 312500, 335000, 390625, 418750, 625000, 781250, 837500, 1046875, 1562500, 1675000, 2093750, 3125000, 4187500, 5234375, 8375000, 10468750, 20937500, 26171875, 41875000, 52343750, 104687500, 209375000]

約数ペア:

[(1, 209375000), (2, 104687500), (4, 52343750), (5, 41875000), (8, 26171875), (10, 20937500), (20, 10468750), (25, 8375000), (40, 5234375), (50, 4187500), (67, 3125000), (100, 2093750), (125, 1675000), (134, 1562500), (200, 1046875), (250, 837500), (268, 781250), (335, 625000), (500, 418750), (536, 390625), (625, 335000), (670, 312500), (1000, 209375), (1250, 167500), (1340, 156250), (1675, 125000), (2500, 83750), (2680, 78125), (3125, 67000), (3350, 62500), (5000, 41875), (6250, 33500), (6700, 31250), (8375, 25000), (12500, 16750), (13400, 15625)]