389969146120

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1483}}^1\times {\mathrm{19861}}^1$

素因数の和:21686

約数の個数: 64

約数和(自身を含む): 880719215040

約数和(自身を除く): 490750068920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1483, 1655, 2648, 2966, 3310, 5932, 6620, 7415, 11864, 13240, 14830, 19861, 29660, 39722, 59320, 79444, 99305, 158888, 198610, 397220, 490873, 794440, 981746, 1963492, 2454365, 3926984, 4908730, 6573991, 9817460, 13147982, 19634920, 26295964, 29453863, 32869955, 52591928, 58907726, 65739910, 117815452, 131479820, 147269315, 235630904, 262959640, 294538630, 589077260, 1178154520, 9749228653, 19498457306, 38996914612, 48746143265, 77993829224, 97492286530, 194984573060, 389969146120]

約数ペア:

[(1, 389969146120), (2, 194984573060), (4, 97492286530), (5, 77993829224), (8, 48746143265), (10, 38996914612), (20, 19498457306), (40, 9749228653), (331, 1178154520), (662, 589077260), (1324, 294538630), (1483, 262959640), (1655, 235630904), (2648, 147269315), (2966, 131479820), (3310, 117815452), (5932, 65739910), (6620, 58907726), (7415, 52591928), (11864, 32869955), (13240, 29453863), (14830, 26295964), (19861, 19634920), (29660, 13147982), (39722, 9817460), (59320, 6573991), (79444, 4908730), (99305, 3926984), (158888, 2454365), (198610, 1963492), (397220, 981746), (490873, 794440)]