221189920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:435

約数の個数: 144

約数和(自身を含む): 616646520

約数和(自身を除く): 395456600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 89, 98, 112, 140, 160, 178, 196, 224, 245, 280, 317, 356, 392, 445, 490, 560, 623, 634, 712, 784, 890, 980, 1120, 1246, 1268, 1424, 1568, 1585, 1780, 1960, 2219, 2492, 2536, 2848, 3115, 3170, 3560, 3920, 4361, 4438, 4984, 5072, 6230, 6340, 7120, 7840, 8722, 8876, 9968, 10144, 11095, 12460, 12680, 14240, 15533, 17444, 17752, 19936, 21805, 22190, 24920, 25360, 28213, 31066, 34888, 35504, 43610, 44380, 49840, 50720, 56426, 62132, 69776, 71008, 77665, 87220, 88760, 99680, 112852, 124264, 139552, 141065, 155330, 174440, 177520, 197491, 225704, 248528, 282130, 310660, 348880, 355040, 394982, 451408, 497056, 564260, 621320, 697760, 789964, 902816, 987455, 1128520, 1242640, 1382437, 1579928, 1974910, 2257040, 2485280, 2764874, 3159856, 3949820, 4514080, 5529748, 6319712, 6912185, 7899640, 11059496, 13824370, 15799280, 22118992, 27648740, 31598560, 44237984, 55297480, 110594960, 221189920]

約数ペア:

[(1, 221189920), (2, 110594960), (4, 55297480), (5, 44237984), (7, 31598560), (8, 27648740), (10, 22118992), (14, 15799280), (16, 13824370), (20, 11059496), (28, 7899640), (32, 6912185), (35, 6319712), (40, 5529748), (49, 4514080), (56, 3949820), (70, 3159856), (80, 2764874), (89, 2485280), (98, 2257040), (112, 1974910), (140, 1579928), (160, 1382437), (178, 1242640), (196, 1128520), (224, 987455), (245, 902816), (280, 789964), (317, 697760), (356, 621320), (392, 564260), (445, 497056), (490, 451408), (560, 394982), (623, 355040), (634, 348880), (712, 310660), (784, 282130), (890, 248528), (980, 225704), (1120, 197491), (1246, 177520), (1268, 174440), (1424, 155330), (1568, 141065), (1585, 139552), (1780, 124264), (1960, 112852), (2219, 99680), (2492, 88760), (2536, 87220), (2848, 77665), (3115, 71008), (3170, 69776), (3560, 62132), (3920, 56426), (4361, 50720), (4438, 49840), (4984, 44380), (5072, 43610), (6230, 35504), (6340, 34888), (7120, 31066), (7840, 28213), (8722, 25360), (8876, 24920), (9968, 22190), (10144, 21805), (11095, 19936), (12460, 17752), (12680, 17444), (14240, 15533)]