1898288880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{20333}}^1$

素因数の和:20738

約数の個数: 80

約数和(自身を含む): 5900113440

約数和(自身を除く): 4001824560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 389, 778, 1167, 1556, 1945, 2334, 3112, 3890, 4668, 5835, 6224, 7780, 9336, 11670, 15560, 18672, 20333, 23340, 31120, 40666, 46680, 60999, 81332, 93360, 101665, 121998, 162664, 203330, 243996, 304995, 325328, 406660, 487992, 609990, 813320, 975984, 1219980, 1626640, 2439960, 4879920, 7909537, 15819074, 23728611, 31638148, 39547685, 47457222, 63276296, 79095370, 94914444, 118643055, 126552592, 158190740, 189828888, 237286110, 316381480, 379657776, 474572220, 632762960, 949144440, 1898288880]

約数ペア:

[(1, 1898288880), (2, 949144440), (3, 632762960), (4, 474572220), (5, 379657776), (6, 316381480), (8, 237286110), (10, 189828888), (12, 158190740), (15, 126552592), (16, 118643055), (20, 94914444), (24, 79095370), (30, 63276296), (40, 47457222), (48, 39547685), (60, 31638148), (80, 23728611), (120, 15819074), (240, 7909537), (389, 4879920), (778, 2439960), (1167, 1626640), (1556, 1219980), (1945, 975984), (2334, 813320), (3112, 609990), (3890, 487992), (4668, 406660), (5835, 325328), (6224, 304995), (7780, 243996), (9336, 203330), (11670, 162664), (15560, 121998), (18672, 101665), (20333, 93360), (23340, 81332), (31120, 60999), (40666, 46680)]