1289799440

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{98911}}^1$

素因数の和:99087

約数の個数: 40

約数和(自身を含む): 3017211648

約数和(自身を除く): 1727412208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 13040, 98911, 197822, 395644, 494555, 791288, 989110, 1582576, 1978220, 3956440, 7912880, 16122493, 32244986, 64489972, 80612465, 128979944, 161224930, 257959888, 322449860, 644899720, 1289799440]

約数ペア:

[(1, 1289799440), (2, 644899720), (4, 322449860), (5, 257959888), (8, 161224930), (10, 128979944), (16, 80612465), (20, 64489972), (40, 32244986), (80, 16122493), (163, 7912880), (326, 3956440), (652, 1978220), (815, 1582576), (1304, 989110), (1630, 791288), (2608, 494555), (3260, 395644), (6520, 197822), (13040, 98911)]