12996822800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2499389}}^1$

素因数の和:2499420

約数の個数: 60

約数和(自身を含む): 33626793060

約数和(自身を除く): 20629970260

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 2499389, 4998778, 9997556, 12496945, 19995112, 24993890, 32492057, 39990224, 49987780, 62484725, 64984114, 99975560, 124969450, 129968228, 162460285, 199951120, 249938900, 259936456, 324920570, 499877800, 519872912, 649841140, 812301425, 999755600, 1299682280, 1624602850, 2599364560, 3249205700, 6498411400, 12996822800]

約数ペア:

[(1, 12996822800), (2, 6498411400), (4, 3249205700), (5, 2599364560), (8, 1624602850), (10, 1299682280), (13, 999755600), (16, 812301425), (20, 649841140), (25, 519872912), (26, 499877800), (40, 324920570), (50, 259936456), (52, 249938900), (65, 199951120), (80, 162460285), (100, 129968228), (104, 124969450), (130, 99975560), (200, 64984114), (208, 62484725), (260, 49987780), (325, 39990224), (400, 32492057), (520, 24993890), (650, 19995112), (1040, 12496945), (1300, 9997556), (2600, 4998778), (5200, 2499389)]