87187220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{347}}^1\times {\mathrm{739}}^1$

素因数の和:1112

約数の個数: 48

約数和(自身を含む): 194685120

約数和(自身を除く): 107497900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 347, 694, 739, 1388, 1478, 1735, 2956, 3470, 3695, 5899, 6940, 7390, 11798, 12563, 14780, 23596, 25126, 29495, 50252, 58990, 62815, 117980, 125630, 251260, 256433, 512866, 1025732, 1282165, 2564330, 4359361, 5128660, 8718722, 17437444, 21796805, 43593610, 87187220]

約数ペア:

[(1, 87187220), (2, 43593610), (4, 21796805), (5, 17437444), (10, 8718722), (17, 5128660), (20, 4359361), (34, 2564330), (68, 1282165), (85, 1025732), (170, 512866), (340, 256433), (347, 251260), (694, 125630), (739, 117980), (1388, 62815), (1478, 58990), (1735, 50252), (2956, 29495), (3470, 25126), (3695, 23596), (5899, 14780), (6940, 12563), (7390, 11798)]