2819915

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:179

約数の個数: 32

約数和(自身を含む): 4202496

約数和(自身を除く): 1382581

約数列:

[1, 5, 7, 23, 31, 35, 113, 115, 155, 161, 217, 565, 713, 791, 805, 1085, 2599, 3503, 3565, 3955, 4991, 12995, 17515, 18193, 24521, 24955, 80569, 90965, 122605, 402845, 563983, 2819915]

約数ペア:

[(1, 2819915), (5, 563983), (7, 402845), (23, 122605), (31, 90965), (35, 80569), (113, 24955), (115, 24521), (155, 18193), (161, 17515), (217, 12995), (565, 4991), (713, 3955), (791, 3565), (805, 3503), (1085, 2599)]