164000000

素因数分解:

$2^8\times 5^6\times {\mathrm{41}}^1$

素因数の和:87

約数の個数: 126

約数和(自身を含む): 419174322

約数和(自身を除く): 255174322

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 64, 80, 82, 100, 125, 128, 160, 164, 200, 205, 250, 256, 320, 328, 400, 410, 500, 625, 640, 656, 800, 820, 1000, 1025, 1250, 1280, 1312, 1600, 1640, 2000, 2050, 2500, 2624, 3125, 3200, 3280, 4000, 4100, 5000, 5125, 5248, 6250, 6400, 6560, 8000, 8200, 10000, 10250, 10496, 12500, 13120, 15625, 16000, 16400, 20000, 20500, 25000, 25625, 26240, 31250, 32000, 32800, 40000, 41000, 50000, 51250, 52480, 62500, 65600, 80000, 82000, 100000, 102500, 125000, 128125, 131200, 160000, 164000, 200000, 205000, 250000, 256250, 262400, 328000, 400000, 410000, 500000, 512500, 640625, 656000, 800000, 820000, 1000000, 1025000, 1281250, 1312000, 1640000, 2000000, 2050000, 2562500, 3280000, 4000000, 4100000, 5125000, 6560000, 8200000, 10250000, 16400000, 20500000, 32800000, 41000000, 82000000, 164000000]

約数ペア:

[(1, 164000000), (2, 82000000), (4, 41000000), (5, 32800000), (8, 20500000), (10, 16400000), (16, 10250000), (20, 8200000), (25, 6560000), (32, 5125000), (40, 4100000), (41, 4000000), (50, 3280000), (64, 2562500), (80, 2050000), (82, 2000000), (100, 1640000), (125, 1312000), (128, 1281250), (160, 1025000), (164, 1000000), (200, 820000), (205, 800000), (250, 656000), (256, 640625), (320, 512500), (328, 500000), (400, 410000), (410, 400000), (500, 328000), (625, 262400), (640, 256250), (656, 250000), (800, 205000), (820, 200000), (1000, 164000), (1025, 160000), (1250, 131200), (1280, 128125), (1312, 125000), (1600, 102500), (1640, 100000), (2000, 82000), (2050, 80000), (2500, 65600), (2624, 62500), (3125, 52480), (3200, 51250), (3280, 50000), (4000, 41000), (4100, 40000), (5000, 32800), (5125, 32000), (5248, 31250), (6250, 26240), (6400, 25625), (6560, 25000), (8000, 20500), (8200, 20000), (10000, 16400), (10250, 16000), (10496, 15625), (12500, 13120)]