19800872

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{461}}^1$

素因数の和:546

約数の個数: 64

約数和(自身を含む): 46569600

約数和(自身を除く): 26768728

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 59, 91, 104, 118, 182, 236, 364, 413, 461, 472, 728, 767, 826, 922, 1534, 1652, 1844, 3068, 3227, 3304, 3688, 5369, 5993, 6136, 6454, 10738, 11986, 12908, 21476, 23972, 25816, 27199, 41951, 42952, 47944, 54398, 83902, 108796, 167804, 190393, 217592, 335608, 353587, 380786, 707174, 761572, 1414348, 1523144, 2475109, 2828696, 4950218, 9900436, 19800872]

約数ペア:

[(1, 19800872), (2, 9900436), (4, 4950218), (7, 2828696), (8, 2475109), (13, 1523144), (14, 1414348), (26, 761572), (28, 707174), (52, 380786), (56, 353587), (59, 335608), (91, 217592), (104, 190393), (118, 167804), (182, 108796), (236, 83902), (364, 54398), (413, 47944), (461, 42952), (472, 41951), (728, 27199), (767, 25816), (826, 23972), (922, 21476), (1534, 12908), (1652, 11986), (1844, 10738), (3068, 6454), (3227, 6136), (3304, 5993), (3688, 5369)]