87967720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{409}}^1$

素因数の和:722

約数の個数: 64

約数和(自身を含む): 209592000

約数和(自身を除く): 121624280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 283, 380, 409, 566, 760, 818, 1132, 1415, 1636, 2045, 2264, 2830, 3272, 4090, 5377, 5660, 7771, 8180, 10754, 11320, 15542, 16360, 21508, 26885, 31084, 38855, 43016, 53770, 62168, 77710, 107540, 115747, 155420, 215080, 231494, 310840, 462988, 578735, 925976, 1157470, 2199193, 2314940, 4398386, 4629880, 8796772, 10995965, 17593544, 21991930, 43983860, 87967720]

約数ペア:

[(1, 87967720), (2, 43983860), (4, 21991930), (5, 17593544), (8, 10995965), (10, 8796772), (19, 4629880), (20, 4398386), (38, 2314940), (40, 2199193), (76, 1157470), (95, 925976), (152, 578735), (190, 462988), (283, 310840), (380, 231494), (409, 215080), (566, 155420), (760, 115747), (818, 107540), (1132, 77710), (1415, 62168), (1636, 53770), (2045, 43016), (2264, 38855), (2830, 31084), (3272, 26885), (4090, 21508), (5377, 16360), (5660, 15542), (7771, 11320), (8180, 10754)]