1990502912

素因数分解:

$2^9\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{587}}^1$

素因数の和:821

約数の個数: 80

約数和(自身を含む): 4114424160

約数和(自身を除く): 2123921248

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 128, 148, 179, 256, 296, 358, 512, 587, 592, 716, 1174, 1184, 1432, 2348, 2368, 2864, 4696, 4736, 5728, 6623, 9392, 9472, 11456, 13246, 18784, 18944, 21719, 22912, 26492, 37568, 43438, 45824, 52984, 75136, 86876, 91648, 105073, 105968, 150272, 173752, 210146, 211936, 300544, 347504, 420292, 423872, 695008, 840584, 847744, 1390016, 1681168, 1695488, 2780032, 3362336, 3390976, 3887701, 5560064, 6724672, 7775402, 11120128, 13449344, 15550804, 26898688, 31101608, 53797376, 62203216, 124406432, 248812864, 497625728, 995251456, 1990502912]

約数ペア:

[(1, 1990502912), (2, 995251456), (4, 497625728), (8, 248812864), (16, 124406432), (32, 62203216), (37, 53797376), (64, 31101608), (74, 26898688), (128, 15550804), (148, 13449344), (179, 11120128), (256, 7775402), (296, 6724672), (358, 5560064), (512, 3887701), (587, 3390976), (592, 3362336), (716, 2780032), (1174, 1695488), (1184, 1681168), (1432, 1390016), (2348, 847744), (2368, 840584), (2864, 695008), (4696, 423872), (4736, 420292), (5728, 347504), (6623, 300544), (9392, 211936), (9472, 210146), (11456, 173752), (13246, 150272), (18784, 105968), (18944, 105073), (21719, 91648), (22912, 86876), (26492, 75136), (37568, 52984), (43438, 45824)]