25215820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:271

約数の個数: 96

約数和(自身を含む): 65028096

約数和(自身を除く): 39812276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 41, 46, 70, 82, 92, 115, 140, 161, 164, 191, 205, 230, 287, 322, 382, 410, 460, 574, 644, 764, 805, 820, 943, 955, 1148, 1337, 1435, 1610, 1886, 1910, 2674, 2870, 3220, 3772, 3820, 4393, 4715, 5348, 5740, 6601, 6685, 7831, 8786, 9430, 13202, 13370, 15662, 17572, 18860, 21965, 26404, 26740, 30751, 31324, 33005, 39155, 43930, 54817, 61502, 66010, 78310, 87860, 109634, 123004, 132020, 153755, 156620, 180113, 219268, 274085, 307510, 360226, 548170, 615020, 720452, 900565, 1096340, 1260791, 1801130, 2521582, 3602260, 5043164, 6303955, 12607910, 25215820]

約数ペア:

[(1, 25215820), (2, 12607910), (4, 6303955), (5, 5043164), (7, 3602260), (10, 2521582), (14, 1801130), (20, 1260791), (23, 1096340), (28, 900565), (35, 720452), (41, 615020), (46, 548170), (70, 360226), (82, 307510), (92, 274085), (115, 219268), (140, 180113), (161, 156620), (164, 153755), (191, 132020), (205, 123004), (230, 109634), (287, 87860), (322, 78310), (382, 66010), (410, 61502), (460, 54817), (574, 43930), (644, 39155), (764, 33005), (805, 31324), (820, 30751), (943, 26740), (955, 26404), (1148, 21965), (1337, 18860), (1435, 17572), (1610, 15662), (1886, 13370), (1910, 13202), (2674, 9430), (2870, 8786), (3220, 7831), (3772, 6685), (3820, 6601), (4393, 5740), (4715, 5348)]