28247565

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1997}}^1$

素因数の和:2069

約数の個数: 32

約数和(自身を含む): 48335616

約数和(自身を除く): 20088051

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 1997, 2829, 4715, 5991, 9985, 14145, 29955, 45931, 81877, 137793, 229655, 245631, 409385, 688965, 1228155, 1883171, 5649513, 9415855, 28247565]

約数ペア:

[(1, 28247565), (3, 9415855), (5, 5649513), (15, 1883171), (23, 1228155), (41, 688965), (69, 409385), (115, 245631), (123, 229655), (205, 137793), (345, 81877), (615, 45931), (943, 29955), (1997, 14145), (2829, 9985), (4715, 5991)]