87489940

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{599}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 188496000

約数和(自身を除く): 101006060

約数列:

[1, 2, 4, 5, 10, 20, 67, 109, 134, 218, 268, 335, 436, 545, 599, 670, 1090, 1198, 1340, 2180, 2396, 2995, 5990, 7303, 11980, 14606, 29212, 36515, 40133, 65291, 73030, 80266, 130582, 146060, 160532, 200665, 261164, 326455, 401330, 652910, 802660, 1305820, 4374497, 8748994, 17497988, 21872485, 43744970, 87489940]

約数ペア:

[(1, 87489940), (2, 43744970), (4, 21872485), (5, 17497988), (10, 8748994), (20, 4374497), (67, 1305820), (109, 802660), (134, 652910), (218, 401330), (268, 326455), (335, 261164), (436, 200665), (545, 160532), (599, 146060), (670, 130582), (1090, 80266), (1198, 73030), (1340, 65291), (2180, 40133), (2396, 36515), (2995, 29212), (5990, 14606), (7303, 11980)]