20802116864

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{104311}}^1$

素因数の和:104387

約数の個数: 72

約数和(自身を含む): 44774882880

約数和(自身を除く): 23972766016

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 41, 64, 76, 82, 128, 152, 164, 256, 304, 328, 608, 656, 779, 1216, 1312, 1558, 2432, 2624, 3116, 4864, 5248, 6232, 10496, 12464, 24928, 49856, 99712, 104311, 199424, 208622, 417244, 834488, 1668976, 1981909, 3337952, 3963818, 4276751, 6675904, 7927636, 8553502, 13351808, 15855272, 17107004, 26703616, 31710544, 34214008, 63421088, 68428016, 81258269, 126842176, 136856032, 162516538, 253684352, 273712064, 325033076, 507368704, 547424128, 650066152, 1094848256, 1300132304, 2600264608, 5200529216, 10401058432, 20802116864]

約数ペア:

[(1, 20802116864), (2, 10401058432), (4, 5200529216), (8, 2600264608), (16, 1300132304), (19, 1094848256), (32, 650066152), (38, 547424128), (41, 507368704), (64, 325033076), (76, 273712064), (82, 253684352), (128, 162516538), (152, 136856032), (164, 126842176), (256, 81258269), (304, 68428016), (328, 63421088), (608, 34214008), (656, 31710544), (779, 26703616), (1216, 17107004), (1312, 15855272), (1558, 13351808), (2432, 8553502), (2624, 7927636), (3116, 6675904), (4864, 4276751), (5248, 3963818), (6232, 3337952), (10496, 1981909), (12464, 1668976), (24928, 834488), (49856, 417244), (99712, 208622), (104311, 199424)]