20808424

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{283}}^1$

素因数の和:410

約数の個数: 64

約数和(自身を含む): 48666240

約数和(自身を除く): 27857816

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 101, 104, 182, 202, 283, 364, 404, 566, 707, 728, 808, 1132, 1313, 1414, 1981, 2264, 2626, 2828, 3679, 3962, 5252, 5656, 7358, 7924, 9191, 10504, 14716, 15848, 18382, 25753, 28583, 29432, 36764, 51506, 57166, 73528, 103012, 114332, 200081, 206024, 228664, 371579, 400162, 743158, 800324, 1486316, 1600648, 2601053, 2972632, 5202106, 10404212, 20808424]

約数ペア:

[(1, 20808424), (2, 10404212), (4, 5202106), (7, 2972632), (8, 2601053), (13, 1600648), (14, 1486316), (26, 800324), (28, 743158), (52, 400162), (56, 371579), (91, 228664), (101, 206024), (104, 200081), (182, 114332), (202, 103012), (283, 73528), (364, 57166), (404, 51506), (566, 36764), (707, 29432), (728, 28583), (808, 25753), (1132, 18382), (1313, 15848), (1414, 14716), (1981, 10504), (2264, 9191), (2626, 7924), (2828, 7358), (3679, 5656), (3962, 5252)]