28666455

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 47044800

約数和(自身を除く): 18378345

約数列:

[1, 3, 5, 15, 89, 109, 197, 267, 327, 445, 545, 591, 985, 1335, 1635, 2955, 9701, 17533, 21473, 29103, 48505, 52599, 64419, 87665, 107365, 145515, 262995, 322095, 1911097, 5733291, 9555485, 28666455]

約数ペア:

[(1, 28666455), (3, 9555485), (5, 5733291), (15, 1911097), (89, 322095), (109, 262995), (197, 145515), (267, 107365), (327, 87665), (445, 64419), (545, 52599), (591, 48505), (985, 29103), (1335, 21473), (1635, 17533), (2955, 9701)]