820406078.0000000000

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{673}}^1\times {\mathrm{941}}^1$

素因数の和:1700

約数の個数: 64

約数和(自身を含む): 11809288800

約数和(自身を除く): 5937396104

約数列:

[1, 2, 4, 8, 19, 38, 61, 76, 122, 152, 244, 488, 673, 941, 1159, 1346, 1882, 2318, 2692, 3764, 4636, 5384, 7528, 9272, 12787, 17879, 25574, 35758, 41053, 51148, 57401, 71516, 82106, 102296, 114802, 143032, 164212, 229604, 328424, 459208, 633293, 780007, 1090619, 1266586, 1560014, 2181238, 2533172, 3120028, 4362476, 5066344, 6240056, 8724952, 12032567, 24065134, 38630873, 48130268, 77261746, 96260536, 154523492, 309046984, 733986587, 1467973174, 2935946348, 5871892696]

約数ペア:

[(1, 5871892696), (2, 2935946348), (4, 1467973174), (8, 733986587), (19, 309046984), (38, 154523492), (61, 96260536), (76, 77261746), (122, 48130268), (152, 38630873), (244, 24065134), (488, 12032567), (673, 8724952), (941, 6240056), (1159, 5066344), (1346, 4362476), (1882, 3120028), (2318, 2533172), (2692, 2181238), (3764, 1560014), (4636, 1266586), (5384, 1090619), (7528, 780007), (9272, 633293), (12787, 459208), (17879, 328424), (25574, 229604), (35758, 164212), (41053, 143032), (51148, 114802), (57401, 102296), (71516, 82106)]