158240000

素因数分解:

$2^8\times 5^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:102

約数の個数: 180

約数和(自身を含む): 421440096

約数和(自身を除く): 263200096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 43, 46, 50, 64, 80, 86, 92, 100, 115, 125, 128, 160, 172, 184, 200, 215, 230, 250, 256, 320, 344, 368, 400, 430, 460, 500, 575, 625, 640, 688, 736, 800, 860, 920, 989, 1000, 1075, 1150, 1250, 1280, 1376, 1472, 1600, 1720, 1840, 1978, 2000, 2150, 2300, 2500, 2752, 2875, 2944, 3200, 3440, 3680, 3956, 4000, 4300, 4600, 4945, 5000, 5375, 5504, 5750, 5888, 6400, 6880, 7360, 7912, 8000, 8600, 9200, 9890, 10000, 10750, 11008, 11500, 13760, 14375, 14720, 15824, 16000, 17200, 18400, 19780, 20000, 21500, 23000, 24725, 26875, 27520, 28750, 29440, 31648, 32000, 34400, 36800, 39560, 40000, 43000, 46000, 49450, 53750, 55040, 57500, 63296, 68800, 73600, 79120, 80000, 86000, 92000, 98900, 107500, 115000, 123625, 126592, 137600, 147200, 158240, 160000, 172000, 184000, 197800, 215000, 230000, 247250, 253184, 275200, 316480, 344000, 368000, 395600, 430000, 460000, 494500, 618125, 632960, 688000, 736000, 791200, 860000, 920000, 989000, 1236250, 1265920, 1376000, 1582400, 1720000, 1840000, 1978000, 2472500, 3164800, 3440000, 3680000, 3956000, 4945000, 6329600, 6880000, 7912000, 9890000, 15824000, 19780000, 31648000, 39560000, 79120000, 158240000]

約数ペア:

[(1, 158240000), (2, 79120000), (4, 39560000), (5, 31648000), (8, 19780000), (10, 15824000), (16, 9890000), (20, 7912000), (23, 6880000), (25, 6329600), (32, 4945000), (40, 3956000), (43, 3680000), (46, 3440000), (50, 3164800), (64, 2472500), (80, 1978000), (86, 1840000), (92, 1720000), (100, 1582400), (115, 1376000), (125, 1265920), (128, 1236250), (160, 989000), (172, 920000), (184, 860000), (200, 791200), (215, 736000), (230, 688000), (250, 632960), (256, 618125), (320, 494500), (344, 460000), (368, 430000), (400, 395600), (430, 368000), (460, 344000), (500, 316480), (575, 275200), (625, 253184), (640, 247250), (688, 230000), (736, 215000), (800, 197800), (860, 184000), (920, 172000), (989, 160000), (1000, 158240), (1075, 147200), (1150, 137600), (1250, 126592), (1280, 123625), (1376, 115000), (1472, 107500), (1600, 98900), (1720, 92000), (1840, 86000), (1978, 80000), (2000, 79120), (2150, 73600), (2300, 68800), (2500, 63296), (2752, 57500), (2875, 55040), (2944, 53750), (3200, 49450), (3440, 46000), (3680, 43000), (3956, 40000), (4000, 39560), (4300, 36800), (4600, 34400), (4945, 32000), (5000, 31648), (5375, 29440), (5504, 28750), (5750, 27520), (5888, 26875), (6400, 24725), (6880, 23000), (7360, 21500), (7912, 20000), (8000, 19780), (8600, 18400), (9200, 17200), (9890, 16000), (10000, 15824), (10750, 14720), (11008, 14375), (11500, 13760)]