161000000

素因数分解:

$2^6\times 5^6\times 7^1\times {\mathrm{23}}^1$

素因数の和:72

約数の個数: 196

約数和(自身を含む): 476243904

約数和(自身を除く): 315243904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 32, 35, 40, 46, 50, 56, 64, 70, 80, 92, 100, 112, 115, 125, 140, 160, 161, 175, 184, 200, 224, 230, 250, 280, 320, 322, 350, 368, 400, 448, 460, 500, 560, 575, 625, 644, 700, 736, 800, 805, 875, 920, 1000, 1120, 1150, 1250, 1288, 1400, 1472, 1600, 1610, 1750, 1840, 2000, 2240, 2300, 2500, 2576, 2800, 2875, 3125, 3220, 3500, 3680, 4000, 4025, 4375, 4600, 5000, 5152, 5600, 5750, 6250, 6440, 7000, 7360, 8000, 8050, 8750, 9200, 10000, 10304, 11200, 11500, 12500, 12880, 14000, 14375, 15625, 16100, 17500, 18400, 20000, 20125, 21875, 23000, 25000, 25760, 28000, 28750, 31250, 32200, 35000, 36800, 40000, 40250, 43750, 46000, 50000, 51520, 56000, 57500, 62500, 64400, 70000, 71875, 80500, 87500, 92000, 100000, 100625, 109375, 115000, 125000, 128800, 140000, 143750, 161000, 175000, 184000, 200000, 201250, 218750, 230000, 250000, 257600, 280000, 287500, 322000, 350000, 359375, 402500, 437500, 460000, 500000, 503125, 575000, 644000, 700000, 718750, 805000, 875000, 920000, 1000000, 1006250, 1150000, 1288000, 1400000, 1437500, 1610000, 1750000, 2012500, 2300000, 2515625, 2875000, 3220000, 3500000, 4025000, 4600000, 5031250, 5750000, 6440000, 7000000, 8050000, 10062500, 11500000, 16100000, 20125000, 23000000, 32200000, 40250000, 80500000, 161000000]

約数ペア:

[(1, 161000000), (2, 80500000), (4, 40250000), (5, 32200000), (7, 23000000), (8, 20125000), (10, 16100000), (14, 11500000), (16, 10062500), (20, 8050000), (23, 7000000), (25, 6440000), (28, 5750000), (32, 5031250), (35, 4600000), (40, 4025000), (46, 3500000), (50, 3220000), (56, 2875000), (64, 2515625), (70, 2300000), (80, 2012500), (92, 1750000), (100, 1610000), (112, 1437500), (115, 1400000), (125, 1288000), (140, 1150000), (160, 1006250), (161, 1000000), (175, 920000), (184, 875000), (200, 805000), (224, 718750), (230, 700000), (250, 644000), (280, 575000), (320, 503125), (322, 500000), (350, 460000), (368, 437500), (400, 402500), (448, 359375), (460, 350000), (500, 322000), (560, 287500), (575, 280000), (625, 257600), (644, 250000), (700, 230000), (736, 218750), (800, 201250), (805, 200000), (875, 184000), (920, 175000), (1000, 161000), (1120, 143750), (1150, 140000), (1250, 128800), (1288, 125000), (1400, 115000), (1472, 109375), (1600, 100625), (1610, 100000), (1750, 92000), (1840, 87500), (2000, 80500), (2240, 71875), (2300, 70000), (2500, 64400), (2576, 62500), (2800, 57500), (2875, 56000), (3125, 51520), (3220, 50000), (3500, 46000), (3680, 43750), (4000, 40250), (4025, 40000), (4375, 36800), (4600, 35000), (5000, 32200), (5152, 31250), (5600, 28750), (5750, 28000), (6250, 25760), (6440, 25000), (7000, 23000), (7360, 21875), (8000, 20125), (8050, 20000), (8750, 18400), (9200, 17500), (10000, 16100), (10304, 15625), (11200, 14375), (11500, 14000), (12500, 12880)]