305500520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{1877}}^1$

素因数の和:2214

約数の個数: 64

約数和(自身を含む): 743011920

約数和(自身を除く): 437511400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 313, 520, 626, 1252, 1565, 1877, 2504, 3130, 3754, 4069, 6260, 7508, 8138, 9385, 12520, 15016, 16276, 18770, 20345, 24401, 32552, 37540, 40690, 48802, 75080, 81380, 97604, 122005, 162760, 195208, 244010, 488020, 587501, 976040, 1175002, 2350004, 2937505, 4700008, 5875010, 7637513, 11750020, 15275026, 23500040, 30550052, 38187565, 61100104, 76375130, 152750260, 305500520]

約数ペア:

[(1, 305500520), (2, 152750260), (4, 76375130), (5, 61100104), (8, 38187565), (10, 30550052), (13, 23500040), (20, 15275026), (26, 11750020), (40, 7637513), (52, 5875010), (65, 4700008), (104, 2937505), (130, 2350004), (260, 1175002), (313, 976040), (520, 587501), (626, 488020), (1252, 244010), (1565, 195208), (1877, 162760), (2504, 122005), (3130, 97604), (3754, 81380), (4069, 75080), (6260, 48802), (7508, 40690), (8138, 37540), (9385, 32552), (12520, 24401), (15016, 20345), (16276, 18770)]