127978000

素因数分解:

$2^4\times 5^3\times {\mathrm{61}}^1\times {\mathrm{1049}}^1$

素因数の和:1133

約数の個数: 80

約数和(自身を含む): 314823600

約数和(自身を除く): 186845600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 125, 200, 244, 250, 305, 400, 488, 500, 610, 976, 1000, 1049, 1220, 1525, 2000, 2098, 2440, 3050, 4196, 4880, 5245, 6100, 7625, 8392, 10490, 12200, 15250, 16784, 20980, 24400, 26225, 30500, 41960, 52450, 61000, 63989, 83920, 104900, 122000, 127978, 131125, 209800, 255956, 262250, 319945, 419600, 511912, 524500, 639890, 1023824, 1049000, 1279780, 1599725, 2098000, 2559560, 3199450, 5119120, 6398900, 7998625, 12797800, 15997250, 25595600, 31994500, 63989000, 127978000]

約数ペア:

[(1, 127978000), (2, 63989000), (4, 31994500), (5, 25595600), (8, 15997250), (10, 12797800), (16, 7998625), (20, 6398900), (25, 5119120), (40, 3199450), (50, 2559560), (61, 2098000), (80, 1599725), (100, 1279780), (122, 1049000), (125, 1023824), (200, 639890), (244, 524500), (250, 511912), (305, 419600), (400, 319945), (488, 262250), (500, 255956), (610, 209800), (976, 131125), (1000, 127978), (1049, 122000), (1220, 104900), (1525, 83920), (2000, 63989), (2098, 61000), (2440, 52450), (3050, 41960), (4196, 30500), (4880, 26225), (5245, 24400), (6100, 20980), (7625, 16784), (8392, 15250), (10490, 12200)]