2078454920

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{331}}^1\times {\mathrm{877}}^1$

素因数の和:1398

約数の個数: 64

約数和(自身を含む): 4722235200

約数和(自身を除く): 2643780280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 331, 358, 662, 716, 877, 895, 1324, 1432, 1655, 1754, 1790, 2648, 3310, 3508, 3580, 4385, 6620, 7016, 7160, 8770, 13240, 17540, 35080, 59249, 118498, 156983, 236996, 290287, 296245, 313966, 473992, 580574, 592490, 627932, 784915, 1161148, 1184980, 1255864, 1451435, 1569830, 2322296, 2369960, 2902870, 3139660, 5805740, 6279320, 11611480, 51961373, 103922746, 207845492, 259806865, 415690984, 519613730, 1039227460, 2078454920]

約数ペア:

[(1, 2078454920), (2, 1039227460), (4, 519613730), (5, 415690984), (8, 259806865), (10, 207845492), (20, 103922746), (40, 51961373), (179, 11611480), (331, 6279320), (358, 5805740), (662, 3139660), (716, 2902870), (877, 2369960), (895, 2322296), (1324, 1569830), (1432, 1451435), (1655, 1255864), (1754, 1184980), (1790, 1161148), (2648, 784915), (3310, 627932), (3508, 592490), (3580, 580574), (4385, 473992), (6620, 313966), (7016, 296245), (7160, 290287), (8770, 236996), (13240, 156983), (17540, 118498), (35080, 59249)]