20187335792

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{137}}^2\times {\mathrm{5171}}^1$

素因数の和:5466

約数の個数: 60

約数和(自身を含む): 42439559736

約数和(自身を除く): 22252223944

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 137, 208, 274, 548, 1096, 1781, 2192, 3562, 5171, 7124, 10342, 14248, 18769, 20684, 28496, 37538, 41368, 67223, 75076, 82736, 134446, 150152, 243997, 268892, 300304, 487994, 537784, 708427, 975988, 1075568, 1416854, 1951976, 2833708, 3903952, 5667416, 9209551, 11334832, 18419102, 36838204, 73676408, 97054499, 147352816, 194108998, 388217996, 776435992, 1261708487, 1552871984, 2523416974, 5046833948, 10093667896, 20187335792]

約数ペア:

[(1, 20187335792), (2, 10093667896), (4, 5046833948), (8, 2523416974), (13, 1552871984), (16, 1261708487), (26, 776435992), (52, 388217996), (104, 194108998), (137, 147352816), (208, 97054499), (274, 73676408), (548, 36838204), (1096, 18419102), (1781, 11334832), (2192, 9209551), (3562, 5667416), (5171, 3903952), (7124, 2833708), (10342, 1951976), (14248, 1416854), (18769, 1075568), (20684, 975988), (28496, 708427), (37538, 537784), (41368, 487994), (67223, 300304), (75076, 268892), (82736, 243997), (134446, 150152)]