161439840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{112111}}^1$

素因数の和:112132

約数の個数: 72

約数和(自身を含む): 550918368

約数和(自身を除く): 389478528

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 112111, 224222, 336333, 448444, 560555, 672666, 896888, 1008999, 1121110, 1345332, 1681665, 1793776, 2017998, 2242220, 2690664, 3363330, 3587552, 4035996, 4484440, 5044995, 5381328, 6726660, 8071992, 8968880, 10089990, 10762656, 13453320, 16143984, 17937760, 20179980, 26906640, 32287968, 40359960, 53813280, 80719920, 161439840]

約数ペア:

[(1, 161439840), (2, 80719920), (3, 53813280), (4, 40359960), (5, 32287968), (6, 26906640), (8, 20179980), (9, 17937760), (10, 16143984), (12, 13453320), (15, 10762656), (16, 10089990), (18, 8968880), (20, 8071992), (24, 6726660), (30, 5381328), (32, 5044995), (36, 4484440), (40, 4035996), (45, 3587552), (48, 3363330), (60, 2690664), (72, 2242220), (80, 2017998), (90, 1793776), (96, 1681665), (120, 1345332), (144, 1121110), (160, 1008999), (180, 896888), (240, 672666), (288, 560555), (360, 448444), (480, 336333), (720, 224222), (1440, 112111)]