8181381725

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1091}}^1$

素因数の和:1227

約数の個数: 72

約数和(自身を含む): 11633984544

約数和(自身を除く): 3452602819

約数列:

[1, 5, 11, 25, 37, 55, 67, 121, 185, 275, 335, 407, 605, 737, 925, 1091, 1675, 2035, 2479, 3025, 3685, 4477, 5455, 8107, 10175, 12001, 12395, 18425, 22385, 27269, 27275, 40367, 40535, 60005, 61975, 73097, 111925, 132011, 136345, 201835, 202675, 299959, 300025, 365485, 444037, 660055, 681725, 804067, 1009175, 1499795, 1827425, 2220185, 2704589, 3300275, 4020335, 4884407, 7498975, 8844737, 11100925, 13522945, 20101675, 24422035, 29750479, 44223685, 67614725, 122110175, 148752395, 221118425, 327255269, 743761975, 1636276345, 8181381725]

約数ペア:

[(1, 8181381725), (5, 1636276345), (11, 743761975), (25, 327255269), (37, 221118425), (55, 148752395), (67, 122110175), (121, 67614725), (185, 44223685), (275, 29750479), (335, 24422035), (407, 20101675), (605, 13522945), (737, 11100925), (925, 8844737), (1091, 7498975), (1675, 4884407), (2035, 4020335), (2479, 3300275), (3025, 2704589), (3685, 2220185), (4477, 1827425), (5455, 1499795), (8107, 1009175), (10175, 804067), (12001, 681725), (12395, 660055), (18425, 444037), (22385, 365485), (27269, 300025), (27275, 299959), (40367, 202675), (40535, 201835), (60005, 136345), (61975, 132011), (73097, 111925)]