121520240

素因数分解:

$2^4\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1873}}^1$

素因数の和:2697

約数の個数: 40

約数和(自身を含む): 283033968

約数和(自身を除く): 161513728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 811, 1622, 1873, 3244, 3746, 4055, 6488, 7492, 8110, 9365, 12976, 14984, 16220, 18730, 29968, 32440, 37460, 64880, 74920, 149840, 1519003, 3038006, 6076012, 7595015, 12152024, 15190030, 24304048, 30380060, 60760120, 121520240]

約数ペア:

[(1, 121520240), (2, 60760120), (4, 30380060), (5, 24304048), (8, 15190030), (10, 12152024), (16, 7595015), (20, 6076012), (40, 3038006), (80, 1519003), (811, 149840), (1622, 74920), (1873, 64880), (3244, 37460), (3746, 32440), (4055, 29968), (6488, 18730), (7492, 16220), (8110, 14984), (9365, 12976)]