18688260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{941}}^1$

素因数の和:1284

約数の個数: 48

約数和(自身を含む): 52540992

約数和(自身を除く): 33852732

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 331, 662, 941, 993, 1324, 1655, 1882, 1986, 2823, 3310, 3764, 3972, 4705, 4965, 5646, 6620, 9410, 9930, 11292, 14115, 18820, 19860, 28230, 56460, 311471, 622942, 934413, 1245884, 1557355, 1868826, 3114710, 3737652, 4672065, 6229420, 9344130, 18688260]

約数ペア:

[(1, 18688260), (2, 9344130), (3, 6229420), (4, 4672065), (5, 3737652), (6, 3114710), (10, 1868826), (12, 1557355), (15, 1245884), (20, 934413), (30, 622942), (60, 311471), (331, 56460), (662, 28230), (941, 19860), (993, 18820), (1324, 14115), (1655, 11292), (1882, 9930), (1986, 9410), (2823, 6620), (3310, 5646), (3764, 4965), (3972, 4705)]