28409325

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1021}}^1$

素因数の和:1094

約数の個数: 48

約数和(自身を含む): 54746496

約数和(自身を除く): 26337171

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 53, 75, 105, 159, 175, 265, 371, 525, 795, 1021, 1113, 1325, 1855, 3063, 3975, 5105, 5565, 7147, 9275, 15315, 21441, 25525, 27825, 35735, 54113, 76575, 107205, 162339, 178675, 270565, 378791, 536025, 811695, 1136373, 1352825, 1893955, 4058475, 5681865, 9469775, 28409325]

約数ペア:

[(1, 28409325), (3, 9469775), (5, 5681865), (7, 4058475), (15, 1893955), (21, 1352825), (25, 1136373), (35, 811695), (53, 536025), (75, 378791), (105, 270565), (159, 178675), (175, 162339), (265, 107205), (371, 76575), (525, 54113), (795, 35735), (1021, 27825), (1113, 25525), (1325, 21441), (1855, 15315), (3063, 9275), (3975, 7147), (5105, 5565)]