28957485

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 47520000

約数和(自身を除く): 18562515

約数列:

[1, 3, 5, 15, 89, 109, 199, 267, 327, 445, 545, 597, 995, 1335, 1635, 2985, 9701, 17711, 21691, 29103, 48505, 53133, 65073, 88555, 108455, 145515, 265665, 325365, 1930499, 5791497, 9652495, 28957485]

約数ペア:

[(1, 28957485), (3, 9652495), (5, 5791497), (15, 1930499), (89, 325365), (109, 265665), (199, 145515), (267, 108455), (327, 88555), (445, 65073), (545, 53133), (597, 48505), (995, 29103), (1335, 21691), (1635, 17711), (2985, 9701)]