28190985

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1993}}^1$

素因数の和:2065

約数の個数: 32

約数和(自身を含む): 48238848

約数和(自身を除く): 20047863

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 1993, 2829, 4715, 5979, 9965, 14145, 29895, 45839, 81713, 137517, 229195, 245139, 408565, 687585, 1225695, 1879399, 5638197, 9396995, 28190985]

約数ペア:

[(1, 28190985), (3, 9396995), (5, 5638197), (15, 1879399), (23, 1225695), (41, 687585), (69, 408565), (115, 245139), (123, 229195), (205, 137517), (345, 81713), (615, 45839), (943, 29895), (1993, 14145), (2829, 9965), (4715, 5979)]