15999600

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:287

約数の個数: 120

約数和(自身を含む): 52278400

約数和(自身を除く): 36278800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 67, 75, 80, 100, 120, 134, 150, 199, 200, 201, 240, 268, 300, 335, 398, 400, 402, 536, 597, 600, 670, 796, 804, 995, 1005, 1072, 1194, 1200, 1340, 1592, 1608, 1675, 1990, 2010, 2388, 2680, 2985, 3184, 3216, 3350, 3980, 4020, 4776, 4975, 5025, 5360, 5970, 6700, 7960, 8040, 9552, 9950, 10050, 11940, 13333, 13400, 14925, 15920, 16080, 19900, 20100, 23880, 26666, 26800, 29850, 39800, 39999, 40200, 47760, 53332, 59700, 66665, 79600, 79998, 80400, 106664, 119400, 133330, 159996, 199995, 213328, 238800, 266660, 319992, 333325, 399990, 533320, 639984, 666650, 799980, 999975, 1066640, 1333300, 1599960, 1999950, 2666600, 3199920, 3999900, 5333200, 7999800, 15999600]

約数ペア:

[(1, 15999600), (2, 7999800), (3, 5333200), (4, 3999900), (5, 3199920), (6, 2666600), (8, 1999950), (10, 1599960), (12, 1333300), (15, 1066640), (16, 999975), (20, 799980), (24, 666650), (25, 639984), (30, 533320), (40, 399990), (48, 333325), (50, 319992), (60, 266660), (67, 238800), (75, 213328), (80, 199995), (100, 159996), (120, 133330), (134, 119400), (150, 106664), (199, 80400), (200, 79998), (201, 79600), (240, 66665), (268, 59700), (300, 53332), (335, 47760), (398, 40200), (400, 39999), (402, 39800), (536, 29850), (597, 26800), (600, 26666), (670, 23880), (796, 20100), (804, 19900), (995, 16080), (1005, 15920), (1072, 14925), (1194, 13400), (1200, 13333), (1340, 11940), (1592, 10050), (1608, 9950), (1675, 9552), (1990, 8040), (2010, 7960), (2388, 6700), (2680, 5970), (2985, 5360), (3184, 5025), (3216, 4975), (3350, 4776), (3980, 4020)]