139520240

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{13313}}^1$

素因数の和:13457

約数の個数: 40

約数和(自身を含む): 326885328

約数和(自身を除く): 187365088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 13313, 26626, 53252, 66565, 106504, 133130, 213008, 266260, 532520, 1065040, 1744003, 3488006, 6976012, 8720015, 13952024, 17440030, 27904048, 34880060, 69760120, 139520240]

約数ペア:

[(1, 139520240), (2, 69760120), (4, 34880060), (5, 27904048), (8, 17440030), (10, 13952024), (16, 8720015), (20, 6976012), (40, 3488006), (80, 1744003), (131, 1065040), (262, 532520), (524, 266260), (655, 213008), (1048, 133130), (1310, 106504), (2096, 66565), (2620, 53252), (5240, 26626), (10480, 13313)]