165397925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 263608128

約数和(自身を除く): 98210203

約数列:

[1, 5, 7, 11, 25, 35, 55, 73, 77, 107, 121, 175, 275, 365, 385, 511, 535, 605, 749, 803, 847, 1177, 1825, 1925, 2555, 2675, 3025, 3745, 4015, 4235, 5621, 5885, 7811, 8239, 8833, 12775, 12947, 18725, 20075, 21175, 28105, 29425, 39055, 41195, 44165, 54677, 61831, 64735, 85921, 90629, 140525, 195275, 205975, 220825, 273385, 309155, 323675, 429605, 453145, 601447, 945131, 1366925, 1545775, 2148025, 2265725, 3007235, 4725655, 6615917, 15036175, 23628275, 33079585, 165397925]

約数ペア:

[(1, 165397925), (5, 33079585), (7, 23628275), (11, 15036175), (25, 6615917), (35, 4725655), (55, 3007235), (73, 2265725), (77, 2148025), (107, 1545775), (121, 1366925), (175, 945131), (275, 601447), (365, 453145), (385, 429605), (511, 323675), (535, 309155), (605, 273385), (749, 220825), (803, 205975), (847, 195275), (1177, 140525), (1825, 90629), (1925, 85921), (2555, 64735), (2675, 61831), (3025, 54677), (3745, 44165), (4015, 41195), (4235, 39055), (5621, 29425), (5885, 28105), (7811, 21175), (8239, 20075), (8833, 18725), (12775, 12947)]