81006880

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26647}}^1$

素因数の和:26681

約数の個数: 48

約数和(自身を含む): 201458880

約数和(自身を除く): 120452000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 26647, 53294, 106588, 133235, 213176, 266470, 426352, 506293, 532940, 852704, 1012586, 1065880, 2025172, 2131760, 2531465, 4050344, 4263520, 5062930, 8100688, 10125860, 16201376, 20251720, 40503440, 81006880]

約数ペア:

[(1, 81006880), (2, 40503440), (4, 20251720), (5, 16201376), (8, 10125860), (10, 8100688), (16, 5062930), (19, 4263520), (20, 4050344), (32, 2531465), (38, 2131760), (40, 2025172), (76, 1065880), (80, 1012586), (95, 852704), (152, 532940), (160, 506293), (190, 426352), (304, 266470), (380, 213176), (608, 133235), (760, 106588), (1520, 53294), (3040, 26647)]